Knife - Essential Tool for Camping, Outdoor Adventure and collection
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ExtremaRatio - Shrapnel One - Black Satin - Knife
Extrema Ratio introduces three new color variants of the Shrapnel One: Total Black, Desert Dark Stone and Black Satin, maintaining the ruggedness and reliability of the original with a touch of style. This multi-role knife is ideal for bushcraft, outdoor and survival enthusiasts, perfect for both military and contractor activities. The 157 mm fixed blade, made of Böhler N690 steel (58 HRC), offers an optimal balance of hardness and strength, making it perfect for activities such as cutting wood or challenging situations.
The forprene handle provides a secure and comfortable grip, even in difficult conditions, while the full-flat rounded blade ensures excellent cutting power. The design includes a hand guard that enhances safety and ergonomics. The back of the blade features thumb serrations, increasing grip.
The ambidextrous Cordura sheath is durable and secure, featuring a blade lock that ensures safe carrying. With a MOLLE system on both sides, the scabbard can be easily attached to tactical vests and belts, with adjustable height and position for right- and left-handed people. Choose your version and get ready to explore!
Intended Use: Tactical/Military
Production type: Industrial
Country of manufacture: Italy
Blade: N690Co stainless steel hardened to 58HRC
Blade finish: Satin finish
Handle: Forprene
Blade length: 157mm.
Blade thickness: 6.3mm. on handle, 4mm. on blade
Total length: 287mm.
Weight: 289g.
Sheath: ambidextrous, cordura, compatible with M.O.L.L.E. system.
Packaging: cardboard box with Extrema Ratio logos
Notes: -ER-SH-ONE-BS -
ExtremaRatio - Shrapnel One - Desert Dark Stone - Knife
Extrema Ratio introduces three new color variations of the Shrapnel One model: Total Black, Desert Dark Stone and Black Satin, maintaining the ruggedness and reliability of the original with a stylish twist. This multi-role knife is ideal for bushcraft, outdoor and survival enthusiasts, perfect for both military and contractor activities. The 157 mm fixed blade, made of Böhler N690 steel (58 HRC), offers an optimal balance of hardness and strength, making it perfect for activities such as cutting wood or challenging situations.
The forprene handle provides a secure and comfortable grip, even in difficult conditions, while the full-flat rounded blade ensures excellent cutting power. The design includes a hand guard that enhances safety and ergonomics. The back of the blade features thumb serrations, increasing grip.
The ambidextrous Cordura sheath is durable and secure, featuring a blade lock that ensures safe carrying. With a MOLLE system on both sides, the scabbard can be easily attached to tactical vests and belts, with adjustable height and position for right- and left-handed people. Choose your version and get ready to explore!
Intended Use: Tactical/Military
Production type: Industrial
Country of manufacture: Italy
Blade: stainless steel N690Co hardened to 58HRC
Blade Finish: Dark Stonewashed
Handle: Forprene
Blade length: 157mm.
Blade thickness: 6.3mm. on handle, 4mm. on blade
Total length: 287mm.
Weight: 289g.
Sheath: ambidextrous, cordura, compatible with M.O.L.L.E. system.
Packaging: cardboard box with Extrema Ratio logos
Notes: -ER-SH-ONE-DDS -
ExtremaRatio - Shrapnel One - Total Black - Knife
Extrema Ratio introduces three new color variations of the Shrapnel One model: Total Black, Desert Dark Stone and Black Satin, maintaining the ruggedness and reliability of the original with a stylish twist. This multi-role knife is ideal for bushcraft, outdoor and survival enthusiasts, perfect for both military and contractor activities. The 157 mm fixed blade, made of Böhler N690 steel (58 HRC), offers an optimal balance of hardness and strength, making it perfect for activities such as cutting wood or challenging situations.
The forprene handle provides a secure and comfortable grip, even in difficult conditions, while the full-flat rounded blade ensures excellent cutting power. The design includes a hand guard that enhances safety and ergonomics. The back of the blade features thumb serrations, increasing grip.
The ambidextrous Cordura sheath is durable and secure, featuring a blade lock that ensures safe carrying. With a MOLLE system on both sides, the scabbard can be easily attached to tactical vests and belts, with adjustable height and position for right- and left-handed people. Choose your version and get ready to explore!
Intended Use: Tactical/Military
Production type: Industrial
Country of manufacture: Italy
Blade: stainless steel N690Co hardened to 58HRC
Blade Finish: Burnishing MIL-C-13924
Handle: Forprene
Blade length: 157mm.
Blade thickness: 6.3mm. on handle, 4mm. on blade
Total length: 287mm.
Weight: 289g.
Sheath: ambidextrous, cordura, compatible with M.O.L.L.E. system.
Packaging: cardboard box with Extrema Ratio logos
Notes: -ER-SH-ONE-TB -
ExtremaRatio - LKU01 Urban Dark - Design By Danilo Rossi Lajolo di Cossano - knife
Unabashedly Italic!
The LKU01 URBAN, developed by Extrema Ratio with Danilo Rossi Lajolo di Cossano, combines Italian tradition and design. The Böhler N690 steel blade offers hardness and strength, while the quick release mechanism makes it easy to use. Free of traditional guards, it is safe and easy to handle. The aluminum grips provide grip and recall the sartorial aesthetic. It is versatile, stylish and perfect for close combat.
Intended use: EDC / CQCType of production: industrial
Country of Manufacture: Italy
Blade: stainless steel N690Co 58HRC
Blade Finish: Burnishing MIL-C-13924
Handle: Anticorodal
Blade length: 100mm.
Blade thickness: 4mm.
Length closed: 124mm.
Total length: 223mm.
Weight: 123g.
Closure: Liner Lock
Clip: reversible and removable, stainless steel
Notes: Design by Danilo Rossi Lajolo di CossanoER-LKU01-UD -
ExtremaRatio - LKU01 Urban Sideral - Design By Danilo Rossi Lajolo di Cossano - knife
Unabashedly Italic!
The LKU01 URBAN, developed by Extrema Ratio with Danilo Rossi Lajolo di Cossano, combines Italian tradition and design. The Böhler N690 steel blade offers hardness and strength, while the quick release mechanism makes it easy to use. Free of traditional guards, it is safe and easy to handle. The aluminum grips provide grip and recall the sartorial aesthetic. It is versatile, stylish and perfect for close combat.
Intended use: EDC / CQCType of production: industrial
Country of Manufacture: Italy
Blade: stainless steel N690Co 58HRC
Blade Finish: Sandblast
Handle: Anticorodal
Blade length: 100mm.
Blade thickness: 4mm.
Length closed: 124mm.
Total length: 223mm.
Weight: 123g.
Closure: Liner Lock
Clip: reversible and removable, stainless steel
Notes: Design by Danilo ROssi Lajolo di CossanoER-LKU01-US -
ExtremaRatio - Contact C Knife Gray - tactical knife
Compact version of the CONTACT, the CONTACT C has a spearhead blade, in Böhler N690 steel with a hardness of 58 HRC, flat edge, lower guard branch and full-length lightening release.
The Forprene handle with locking by threaded tang makes the knife solid and well balanced.
The MOLLE compatible sheath is made of shockproof nylon with a system that avoids shaking noises, is equipped with a two-button safety flap, a thigh with anti-rotation rubber reinforcement and a reversible ambidextrous 2nd level retention system: the simple pressure on the trigger unlocks the blade.
Intended use: Tactical / Backup
Type of production: Industrial
Country of production: Italy
Blade: in N690Co 58HRC stainless steel
Blade treatment: Stonewashed
Handle: Forprene
Blade length: 128mm.
Blade thickness: 6.3mm.
Total length: 258mm.
Weight: 373g.
Sheath: Nylon
Packaging: Cardboard box with Extrema Ratio logos
Note: -ER-CC-GY -
ExtremaRatio - Caimano Nero N.A. - Satin N690Co & Black Aluminum - knife
The Black Caiman is a tactical knife that Extrema Ratio, the official supplier of the Comsubin, developed and delivered to the G.O.I. (Gruppo Operativo Incursori) of the Italian Navy. Its name evokes and pays homage to the heroic Black Caimans of the Piave, a department of Royal Navy Arditi and other components on a volunteer basis, who during World War I swam across the Piave River to carry out raids into enemy territory.
The titanium clip can be positioned at three different angles on either side to allow for maximum customization of the port. Its shape is designed to minimize the bulk of the grip outside the pocket.
Among its features, in addition to the carbide glass breaker, is a safety, which when engaged, preserves against a dangerous accidental closing of the blade.
Intended use: tactical/military
Type of production: industrial
Country of manufacture: Italy
Blade: stainless steel N690Co 58HRC
Blade Finish: Burnished
Handle: Anticorodal aluminum alloy
Blade length: 93mm.
Blade thickness: 4mm.
Length closed: 140mm.
Total length: 231mm.
Weight: 180g.
Closure: Liner Lock
Clip: titanium deep pocket type; reversible, removable and tilting
Notes: additional safety catch that can be used when knife is openER-CAI-NASB -
ExtremaRatio - Caimano Nero N.A. - Black N690Co & Tactical Mud Aluminum - knife
The Black Caiman is a tactical knife that Extrema Ratio, the official supplier of the Comsubin, developed and delivered to the G.O.I. (Gruppo Operativo Incursori) of the Italian Navy. Its name evokes and pays homage to the heroic Black Caimans of the Piave, a department of Royal Navy Arditi and other components on a volunteer basis, who during World War I swam across the Piave River to carry out raids into enemy territory.
The titanium clip can be positioned at three different angles on either side to allow for maximum customization of the port. Its shape is designed to minimize the bulk of the grip outside the pocket.
Among its features, in addition to the carbide glass breaker, is a safety, which when engaged, preserves against a dangerous accidental closing of the blade.
Intended use: tactical/military
Type of production: industrial
Country of manufacture: Italy
Blade: stainless steel N690Co 58HRC
Blade Finish: Burnished
Handle: Anticorodal aluminum alloy
Blade length: 93mm.
Blade thickness: 4mm.
Length closed: 140mm.
Total length: 231mm.
Weight: 180g.
Closure: Liner Lock
Clip: titanium deep pocket type; reversible, removable and tilting
Notes: additional safety catch that can be used when knife is openER-CAI-NATM -
ExtremaRatio - Misericordia Ranger - XXV Anniversarium Limited Edition - knife
Extrema Ratio Misericordia Ranger XXV Anniversarium Limited Edition is a limited series version of only 400 pieces that preserves intact all the features of the famous Misericordia model adopted by the 4th Alpine Parachute Regiment.
Misericordia Ranger XXV Anniversarium Limited Edition comes with 2 sheaths, both in desert color: the first, produced in kydex, offers the possibility of attachment via belt-clip, ulti-clip and malice-clip (optional accessories not included with the product). Attachment to the M.O.L.L.E. system by braiding the paracord is also possible. The second, made of high-strength Nylon, has 2 adjustable loops that allow it to be attached to M.O.L.L.E. systems.
Intended Use: Tactical/Multi-role
Production type: Industrial
Country of Production: Italy
Blade: stainless steel N690Co hardened to 58HRC
Blade treatment: Geotech Camo (Black Warfare)
Handle: FRN (fiberglass reinforced Nylon) with skull crasher / rear glass breaker
Blade length: 118mm.
Blade thickness: 4mm.
Total length: 233mm.
Weight: 87g.
Sheath: double sheath: Kydex and ABS.
Packaging: polypropylene case with Misericordia / Extrema Ratio logos and commemorative Coin
Notes: Limited edition of only 400 pieces, numbered on box and blade to celebrate the company's 25th anniversaryER-MIS-RALE -
ExtremaRatio - Ferrum T knife - Black Warfare - knife
Ferrum T is a folding knife with a clear tactical connotation equipped with a spear point blade with lightening slot. It has a slim and compact shape, the two anodized anticorodal aluminum grips make up a light, slender and at the same time very resistant handle. It can be housed in a breast pocket, in small flashlight holsters or inside a single loop of the M.O.L.L.E. system.
Equipped with a flipper assisted opening system, the blade rotates on ball bearings which allow a smooth and uncertain movement of the blade. This mechanism allows the user to open the blade quickly and easily, even with just one hand. The locking system adopted is the well-tested liner lock. The reversible clip is positioned on the back.
Ferrum T is available in 2 versions: the first, FERRUM T Black Warfare, equipped with a black handle and Geotech Camo blade, the innovative and original Extrema Ratio camouflage pattern, created by laser engraving. The second, FERRUM T TACTICAL MUD, with anodized handle in the new gray-green color and blade with MIL-C-13924 bluing.
The reversible clip is positioned on the back.
Intended use: Tactical / EDC
Type of production: Industrial
Country of production: Italy
Blade: N690Co 58HRC stainless steel
Blade Finish: Black
Handle: Rough Anticorodal
Blade length: 73mm.
Blade thickness: 3mm.
Closed length: 90mm.
Total length: 184mm.
Weight: 86g.
Closure: Liner Lock
Clip: Removable and reversible, in stainless steel
Packaging: Cardboard box with Extrema Ratio logos
Note: -ER-FE-T-BW -
ExtremaRatio - Misericordia Desert - single edge fixed blade knife - Made in Italy
Extrema Ratio Misericordia Desert, which preserves intact all the features of the famous Misericordia model adopted by the 4th Alpine Parachute Regiment, derives from the commemorative dagger made on the occasion of the 140th anniversary of the 4th Alpine Regiment and the 70th since the founding of the Alpine Paratroopers.
It is a tactical-type fixed-blade knife designed for those instances when the knife must be extremely light and compact. The new desert coloring also makes this model available in a shade in line with the most common needs of modern operational departments.
The blade is milled from Böhler N690 steel, hardened to 58 HRC for the best balance of edge retention and strength, is 118 mm long, 4mm thick, and has a flat edge. The weight of the knife is just 87g. The profile is a spear point type, with a full-length shank that makes it even lighter and with a ¾-length false counterblade. The finish is a stone washed type.
The knife's polymer handle features classic Extrema Ratio shells that make for a more secure grip and is attached to the tang by a through-screw. On the rear end the handle flows connecting with a wide ring equipped with a "skull crusher" appendage: a ring that allows the use of martial arts techniques and ensures the hand a very solid grip. In this version the handle is in Desert coloring.
Since this is a knife designed for professional use, much attention has been paid to ease of carrying, accessibility and extraction in case of need. The knife is secured to the sheath by a quick-release safety that can be easily reversed for left-handed use. The sheath is also in Desert coloring, made of high-strength Nylon, very versatile and equipped with 2 adjustable loops that allow it to be attached to M.O.L.L.E systems, facilitating quick extraction in various tactical scenarios.
Intended Use: Tactical / Multirole
Production Type: Industrial
Country of Production: Italy
Blade: stainless steel N690Co hardened to 58HRC
Blade treatment: Stonewashed
Handle: FRN (fiberglass reinforced nylon)
Blade length: 118mm.
Blade thickness: 4mm.
Total length: 233mm.
Weight: 87g.
Sheath: Nylon with two multi-position clips, designed for M.O.L.L.E. type attachments.
Packaging: cardboard box with Extrema Ratio logos
Notes: Rear Skull Crasher - Derived from the Black model, adopted by the 4th Alpine Parachute Regiment.ER-MIS-DE -
ExtremaRatio - G.O.I. Caimano Nero N.A. Flipper - Knife
NON-automatic version of the Caimano Nero model
The Black Caiman is a tactical knife that Extrema Ratio, official supplier of Comsubin, has developed and delivered to the G.O.I. (Gruppo Operativo Incursori) of the Italian Navy. Its name recalls and pays homage to the heroic Caimani Neri del Piave, a department of Arditi of the Regia Marina and other components on a voluntary basis, which during the First World War crossed the Piave River by swimming to carry out raids in enemy territory.
Spear Point" 4 mm blade with asymmetrical rounding and partial sharpening of the counterbore to increase the penetration coefficient. The toothing on the blade allows you to cut cables and fabrics with high resistance preserving the sharpness.
It is a medium folder with a robust structure. The thick aluminum cheeks, thanks to the many processes of removal make the knife light and balanced. The end of the handle, which recalls the shape of the Helix/Timon group of the slow running torpedo (S.L.C.), serves to improve the grip for the rapid extraction of the knife from the pocket.
The DLC-coated titanium clip can be positioned at three different angles on either side to allow for maximum customization of the carry. Its shape is designed to minimize the bulk of the handle outside the pocket.
Among its endowments, besides the carbide glass breaker, there is also a safety, that when inserted, preserves from a dangerous accidental closing of the blade.
Destination of use: Tactical/Military
Type of production: industrial
Blade: stainless steel N690Co 58HRC
Country of production: Italy
Handle: Anticorodal
Blade length: 93mm.
Blade thickness: 4mm.
Length closed: 140mm.
Total lenght: 231mm.
Weight: 180g.
Closure: Liner Lock
Clip: deep pocket, reversible and removable, in stainless steel
Notes: Additional safety stop, when knife is openER-CAI-NA -
ExtremaRatio - Ermes - Satin Ordinanza - Collectors Edition - knife
ERMES is the commemorative knife developed in collaboration with the Special Operations Helicopter Regiment (R.E.O.S.) which is part of the Army Aviation Command.
The R.E.O.S. is the operational unit of helicopters in support of special forces composed of personnel specifically trained and equipped to support military activities in any operational context.
The stylized guards of the knife represent the wings present in the heraldic coat of arms of the unit. The steel used is the reliable Bölher N690Co heat treated to 58 HRC. Fiber Reinforced Nylon (FRN) polyamide polymer was chosen for the handle. The hybrid Kydex and fabric sheath is equipped with belt or harness attachment with MOLLE interface system.
It is available in two versions:
"ERMES SATIN ORDINANZA" with satin finish blade and ABS case.
"ERMES BLACK OPERATIVO", with the burnished blade.Intended use: Collection / Tactical
Production type: Industrial
Country of Production: Italy
Blade: Stainless steel N690Co 58HRC
Blade Treatment: Satin finish
Handle: FRN (Fiberglass Reinforced Nylon)
Blade length: 140mm.
Blade thickness: 6.3mm.
Total length: 256mm.
Weight: 229g.
Sheath: Kydex and Fabric with MOLLE type hooking system.
Package: Commemorative case in ABS with the logos of the department
Notes: Commemorative knife developed in collaboration with the Regiment Helicopters for Special Operations (R.E.O.S.)ER-ERM-OR -
ExtremaRatio - Ermes - Operativo Black - knife
ERMES is the commemorative knife developed in collaboration with the Special Operations Helicopter Regiment (R.E.O.S.) which is part of the Army Aviation Command.
The R.E.O.S. is the operational unit of helicopters in support of special forces composed of personnel specifically trained and equipped to support military activities in any operational context.
The stylized guards of the knife represent the wings present in the heraldic coat of arms of the unit. The steel used is the reliable Bölher N690Co heat treated to 58 HRC. Fiber Reinforced Nylon (FRN) polyamide polymer was chosen for the handle. The hybrid Kydex and fabric sheath is equipped with belt or harness attachment with MOLLE interface system.
It is available in two versions:
"ERMES SATIN ORDINANZAR" with satin finish blade and ABS case.
"ERMES BLACK OPERATIVO", with the burnished blade.Intended use: Collection / Tactical
Production type: Industrial
Country of Production: Italy
Blade: Stainless steel N690Co 58HRC
Blade Treatment: Burnishing Mil-C-13924
Handle: FRN (Fiberglass Reinforced Nylon)
Blade length: 140mm.
Blade thickness: 6.3mm.
Total length: 256mm.
Weight: 229g.
Sheath: Kydex and Fabric with MOLLE type hooking system.
Packaging: Cardboard box with Extrema Ratio logos.
Notes: Commemorative knife developed in collaboration with the Regiment Helicopters for Special Operations (R.E.O.S.)ER-ERM-OP -
ExtremaRatio - Misericordia - 4th Alpine Paratroopers Regiment - tactical knife
The Extrema Ratio Misericordia was adopted by the 4th Alpine Paratroopers Regiment which helped develop and test the product. It is a tactical fixed blade knife, extremely light and compact, it can be used both as a main knife or as a backup blade.
The blade is made of Böhler N690 steel, heat-treated to a hardness of 58 HRc, it is 118 mm long, 4mm thick and has a flat edge.
The profile is of the spear point type, with a full length fuller which makes the blade even lighter and with a false counter-thread at ¾ length. The blade is available with the classic Extrema Ratio MIL-C-13924 black finish.
The handle in fiberglass-reinforced nylon (FRN) features the classic Extrema Ratio recesses that make the grip safer and is fixed to the tang by means of a through screw.
On the rear end the handle flows connecting with a large ring, which allows the use of martial arts techniques and ensures a very solid grip to the hand, equipped with a "skull crusher" appendix in hard metal.
The overall weight of the knife is just 87g. Being a knife designed for professional use, much attention has been paid to ease of port, accessibility and extraction in case of need. The knife is secured to the sheath by a quick-release safety catch that can be easily reversed for use by left-handers.
The sheath is made of highly resistant Nylon, it is very versatile and two adjustable loops allow it to be fixed inside the loops of M.O.L.L.E.
The sheath is equipped with a conical invitation to facilitate the re-insertion of the knife while a simple pressure on the trigger safety allows it to be extracted quickly and instinctively.
Intended use: Tactical / Multirole
Type of production: Industrial
Country of production: Italy
Blade: in N690Co stainless steel hardened to 58HRC
Blade treatment: MIL-C-13924 burnishing
Handle: Forprene
Blade length: 118mm.
Blade thickness: 4mm.
Total length: 233mm.
Weight: 87g.
Sheath: in Nylon with two multi-position clips, designed for M.O.L.L.E.
Packaging: Cardboard box with Extrema Ratio logos
Notes: Rear Skull Crasher - Adopted by the 4th Alpine Paratroopers Regiment.ER-MIS-BK -
ExtremaRatio - Frame Rock Titan - Black DLC - folding knife
The Extrema Ratio Frame Rock is a new knife, based on the Ti-Rock project, a successful frame-lock knife made by Extrema Ratio in 2016 exclusively for Coltelleria Collini.
The Extreme Ratio Frame Rock is characterized by the titanium handle that offers great resistance while being very light. The integrity of the frame-lock locking system is guaranteed against wear by an easily replaceable hardened steel insert.
Unlike its drop-point predecessor, the Rock frame has a spearpoint blade 75 mm long, 6.0 mm thick, equipped with fuller for further lightening. The blade is made of Bohler N690 steel, heat treated to a hardness of 58 HRC. The same is available in black finish with DLC or satin finish.
To make the opening even more fluid and free of uncertainties, the blade rotates on ball bearings. This mechanism allows the user to adjust the force necessary to release the blade from the closed position.
The shape of the reversible clip allows a hidden port in the pocket, making the knife not visible from the outside. The large, solid handle and the well-proportioned blade allow this knife to tackle demanding tasks. Frame Rock weighs less than 200g, making it somewhat light for such a sturdy knife. It is supplied inside an ABS box.
Intended use: collection / CQD
Type of production: industrial
Blade: in N690Co stainless steel
Blade treatment: Black DLC
Country of production: Italy
Handle: in Titanium, machined from solid, with integral Frame Lock closure system with removable hinged and safe made of stainless steel
Blade length: 75mm.
Blade thickness: 6.3mm.
Total length: 181mm.
Weight: 193g.
Clip: stainless steel, reversible, deep pocket type and with tip up port
Notes: Conical Skull Crasher inserted in the shank
Box: in ABS with Extrema Ratio logosER-FRTI-BK -
ExtremaRatio - Frame Rock Titan - Blue Satin - folding knife
The Extrema Ratio Frame Rock is a new knife, based on the Ti-Rock project, a successful frame-lock knife made by Extrema Ratio in 2016 exclusively for Coltelleria Collini.
The Extreme Ratio Frame Rock is characterized by the titanium handle that offers great resistance while being very light. The integrity of the frame-lock locking system is guaranteed against wear by an easily replaceable hardened steel insert.
Unlike its drop-point predecessor, the Rock frame has a spearpoint blade 75 mm long, 6.0 mm thick, equipped with fuller for further lightening. The blade is made of Bohler N690 steel, heat treated to a hardness of 58 HRC. The same is available in black finish with DLC or satin finish.
To make the opening even more fluid and free of uncertainties, the blade rotates on ball bearings. This mechanism allows the user to adjust the force necessary to release the blade from the closed position.
The shape of the reversible clip allows a hidden port in the pocket, making the knife not visible from the outside. The large, solid handle and the well-proportioned blade allow this knife to tackle demanding tasks. Frame Rock weighs less than 200g, making it somewhat light for such a sturdy knife. It is supplied inside an ABS box.
Intended use: collection / CQD
Type of production: industrial,
Blade: in N690Co stainless steel
Blade treatment: Satin finish
Country of production: Italy
Handle: in Titanium, machined from solid, with integral Frame Lock closure system with removable hinged and safe made of stainless steel
Blade length: 75mm.
Blade thickness: 6.3mm.
Total length: 181mm.
Weight: 193g.
Clip: stainless steel, reversible, deep pocket type and with tip up port
Notes: Conical Skull Crasher inserted in the shank
Box: in ABS with Extrema Ratio logosER-FR-BS -
ExtremaRatio - Contact C Knife HCS - tactical knife
Compact version of the CONTACT, the CONTACT C has a spearhead blade, in Böhler N690 steel with a hardness of 58 HRC, flat edge, lower guard branch and full-length lightening release.
The Forprene handle with locking by threaded tang makes the knife solid and well balanced.
The MOLLE compatible sheath is made of shockproof nylon with a system that avoids shaking noises, is equipped with a two-button safety flap, a thigh with anti-rotation rubber reinforcement and a reversible ambidextrous 2nd level retention system: the simple pressure on the trigger unlocks the blade.
Intended use: Tactical / Backup
Type of production: Industrial
Country of production: Italy
Blade: in N690Co 58HRC stainless steel
Blade treatment: Stonewashed
Handle: Forprene
Blade length: 128mm.
Blade thickness: 6.3mm.
Total length: 258mm.
Weight: 373g.
Sheath: Nylon
Packaging: Cardboard box with Extrema Ratio logos
Note: -ER-CC-HC -
ExtremaRatio - Contact C Knife Ranger Green - tactical knife
Compact version of the CONTACT, the CONTACT C has a spearhead blade, in Böhler N690 steel with a hardness of 58 HRC, flat edge, lower guard branch and full-length lightening release.
The Forprene handle with locking by threaded tang makes the knife solid and well balanced.
The MOLLE compatible sheath is made of shockproof nylon with a system that avoids shaking noises, is equipped with a two-button safety flap, a thigh with anti-rotation rubber reinforcement and a reversible ambidextrous 2nd level retention system: the simple pressure on the trigger unlocks the blade.
Intended use: Tactical / Backup
Type of production: Industrial
Country of production: Italy
Blade: in N690Co 58HRC stainless steel
Blade treatment: Stonewashed
Handle: Forprene
Blade length: 128mm.
Blade thickness: 6.3mm.
Total length: 258mm.
Weight: 373g.
Sheath: Nylon
Packaging: Cardboard box with Extrema Ratio logos
Note: -ER-CC-RG -
ExtremaRatio - Contact Ranger Green Knife Stone Washed - tactical knife
Intended use: Tactical / Multirole
Type of production: Industrial
Country of production: Italy
Blade: stainless steel N690Co 58HRC
Blade treatment: Stone Washed
Handle: Forprene
Blade length: 162mm.
Blade thickness: 6.3mm.
Total length: 293mm.
Weight: 300g.
Sheath: in Nylon
Packaging: Cardboard box with Extrema Ratio logos
Note: -Extrema Ratio developed the first knife of a new production line, called CONTACT.
It has a blade with a lance-shaped profile, a flat grinding and a diamond-shaped geometry. It has got a lower guard branch to protect itself from incidental cuts, upper jumping to improve grip, concave fuller along the length of the blade and a generous thickness blade (6.30mm) the now famous Requiem, revisited in proportions and in some technical features. The first of a new line of multipurpose knives.
The blade is made in Böhler N690 steel with a hardness of 58 HRC and a chemical burnishing coating for the Black version. All other colors in production have got a blade with Stone Washed finishing. The handle is still in forprene. It is more assembled by the side screws but thanks to the shank in truncated cone-shaped stainless steel that is screwed to the bottom and goes to fit inside a special seat, which makes it solid. In this way the knife is well balanced. The sheath is minimalist; most of the fabric has been cut off; it has got a 2nd level retention system, remembering the style of the model it was inspired by.
The main shell is injection-molded in shockproof nylon. The secondary retention system is reversible for ambidextrous users. The blade is guided through the conception of the blade. To extract the blade, to pressure the trigger will be sufficient, thus releasing the safety that holds securely in the sheath. In the horizontal slits of the sheath of a system, which fixes the blade to avoid shaking noises when it is stored inside. The back side of the nylon sheath is M.O.L.L.E. compatible.
The textile part is reduced to its minimum and has got the classic two-button safety strap with a belt loop Extrema Ratio aims to reduce the size of the knife, but not saving on the structural strength and safety accessories.
so be used as glass breakers
ER-CON-RG -
ExtremaRatio - Contact Wolf Gray Knife Stone Washed - tactical knife
Intended use: Tactical / Multirole
Type of production: Industrial
Country of production: Italy
Blade: stainless steel N690Co 58HRC
Blade treatment: Stone Washed
Handle: Forprene
Blade length: 162mm.
Blade thickness: 6.3mm.
Total length: 293mm.
Weight: 300g.
Sheath: in Nylon
Packaging: Cardboard box with Extrema Ratio logos
Note: -Extrema Ratio developed the first knife of a new production line, called CONTACT.
It has a blade with a lance-shaped profile, a flat grinding and a diamond-shaped geometry. It has got a lower guard branch to protect itself from incidental cuts, upper jumping to improve grip, concave fuller along the length of the blade and a generous thickness blade (6.30mm) the now famous Requiem, revisited in proportions and in some technical features. The first of a new line of multipurpose knives.
The blade is made in Böhler N690 steel with a hardness of 58 HRC and a chemical burnishing coating for the Black version. All other colors in production have got a blade with Stone Washed finishing. The handle is still in forprene. It is more assembled by the side screws but thanks to the shank in truncated cone-shaped stainless steel that is screwed to the bottom and goes to fit inside a special seat, which makes it solid. In this way the knife is well balanced. The sheath is minimalist; most of the fabric has been cut off; it has got a 2nd level retention system, remembering the style of the model it was inspired by.
The main shell is injection-molded in shockproof nylon. The secondary retention system is reversible for ambidextrous users. The blade is guided through the conception of the blade. To extract the blade, to pressure the trigger will be sufficient, thus releasing the safety that holds securely in the sheath. In the horizontal slits of the sheath of a system, which fixes the blade to avoid shaking noises when it is stored inside. The back side of the nylon sheath is M.O.L.L.E. compatible.
The textile part is reduced to its minimum and has got the classic two-button safety strap with a belt loop Extrema Ratio aims to reduce the size of the knife, but not saving on the structural strength and safety accessories.
so be used as glass breakers
ER-CON-WG -
ExtremaRatio - Contact Knife Black - tactical knife
Intended use: Tactical / Multirole
Type of production: Industrial
Country of production: Italy
Blade: stainless steel N690Co 58HRC
Blade treatment: Brunishing Mil-C-13924
Handle: Forprene
Blade length: 162mm.
Blade thickness: 6.3mm.
Total length: 293mm.
Weight: 300g.
Sheath: in Nylon
Packaging: Cardboard box with Extrema Ratio logos
Note: -Extrema Ratio developed the first knife of a new production line, called CONTACT.
It has a blade with a lance-shaped profile, a flat grinding and a diamond-shaped geometry. It has got a lower guard branch to protect itself from incidental cuts, upper jumping to improve grip, concave fuller along the length of the blade and a generous thickness blade (6.30mm) the now famous Requiem, revisited in proportions and in some technical features. The first of a new line of multipurpose knives.
The blade is made in Böhler N690 steel with a hardness of 58 HRC and a chemical burnishing coating for the Black version. All other colors in production have got a blade with Stone Washed finishing. The handle is still in forprene. It is more assembled by the side screws but thanks to the shank in truncated cone-shaped stainless steel that is screwed to the bottom and goes to fit inside a special seat, which makes it solid. In this way the knife is well balanced. The sheath is minimalist; most of the fabric has been cut off; it has got a 2nd level retention system, remembering the style of the model it was inspired by.
The main shell is injection-molded in shockproof nylon. The secondary retention system is reversible for ambidextrous users. The blade is guided through the conception of the blade. To extract the blade, to pressure the trigger will be sufficient, thus releasing the safety that holds securely in the sheath. In the horizontal slits of the sheath of a system, which fixes the blade to avoid shaking noises when it is stored inside. The back side of the nylon sheath is M.O.L.L.E. compatible.
The textile part is reduced to its minimum and has got the classic two-button safety strap with a belt loop Extrema Ratio aims to reduce the size of the knife, but not saving on the structural strength and safety accessories.
so be used as glass breakers
ER-CON-BK -
ExtremaRatio - Silente Knife Black - NOCS State Police - knife with multi-purpose pliers
SILENTE is the name of the knife taken from the motto "SICUT NOX SILENTES" by N.O.C.S. Central Security Operations Unit, special anti-terrorist unit of the State Police.
SILENTE was presented to the Department, the Authorities, the Minister of the Interior and the Chief of Police on the occasion of the forty-year ceremony of the foundation of the NOCS.
SILENTE is a unique model of its kind that fulfills equally unique needs: the handle is divided into two parts and creates the handle of a clamp placed in the end of the handle. With it, in addition to taking on everything that has the appropriate dimensions, it is possible to cut wire, wire, steel cables, etc. and last but not least, it can be used as a window breaker, given the tungsten carbide insert at the end.
The sheath protects the cutting edge during all these uses, allowing it to be used safely, but it can also release the blade with a fast and silent retention system. Adaptable to thigh use and applicable to the M.O.L.L.E system, it is integrated into the operator's equipment using the least possible space.
Intended use: Tactical / MultiroleType of production: Industrial
Country of production: Italy
Blade: stainless steel N690Co 58HRC
Blade treatment: Brunishing Mil-C-13924
Handle: Forprene
Blade length: 163mm.
Blade thickness: 6.3mm.
Total length: 309mm.
Weight: 338g.
Sheath: in Nylon
Packaging: Cardboard box with Extrema Ratio logos
Notes: a multi-purpose pliers are integrated in the handle for cutting reticulated and cables or can also be used as glass breakersER-SILENTE -
ExtremaRatio - Nimbus Black Ordinanza - Knife
Born from the revisitation of the 39-09 model, the Nimbus was developed and chosen by the 183rd "Nembo" Paratrooper Regiment as a commemorative knife of the events of Case Grizzano which on 19 April 1945 saw the Nembo paratroopers engaged against the paratroopers of a German division . The clashes raged for 12 hours and were often resolved by hand-to-hand combat with the white weapon. A few days after the end of the Second World War one third of the battalion's men remained on the field, but their sacrifice led to the conquest of the battle. The knife in addition to wanting to commemorate an important event of our Armed Forces is the result of a development that has been carefully studied also in the technical aspects, so as to make it suitable for a concrete operational use.
Particular attention has been paid to taking care of the dimensions, the shape and the search for solutions such as the kydex sheath, which is designed to make the knife an instrument capable of adapting to the most complex requirements of the port.
The light and compact blade meets the demands of a modern tactical knife today.
Intended use: Tactical / CQC
Type of production: Industrial
Country of production: Italy
Blade: stainless steel N690Co 58HRC
Blade treatment: Brunishing Mil-C-13924
Handle: Forprene
Blade length: 141mm.
Blade thickness: 5mm.
Total length: 263mm.
Weight: 203g.
Sheath: in Kydex
Packaging: ABS suitcase with 183rd Parachute Regiment logos "Nembo"
Note: -ER-NIM-OR -
ExtremaRatio - Nimbus Black Operative - knife
Born from the revisitation of the 39-09 model, the Nimbus was developed and chosen by the 183rd "Nembo" Paratrooper Regiment as a commemorative knife of the events of Case Grizzano which on 19 April 1945 saw the Nembo paratroopers engaged against the paratroopers of a German division . The clashes raged for 12 hours and were often resolved by hand-to-hand combat with the white weapon. A few days after the end of the Second World War one third of the battalion's men remained on the field, but their sacrifice led to the conquest of the battle. The knife in addition to wanting to commemorate an important event of our Armed Forces is the result of a development that has been carefully studied also in the technical aspects, so as to make it suitable for a concrete operational use.
Particular attention has been paid to taking care of the dimensions, the shape and the search for solutions such as the kydex sheath, which is designed to make the knife an instrument capable of adapting to the most complex requirements of the port.
The light and compact blade meets the demands of a modern tactical knife today.
Intended use: Tactical / CQC
Type of production: Industrial
Country of production: Italy
Blade: stainless steel N690Co 58HRC
Blade treatment: Brunishing Mil-C-13924
Handle: Forprene
Blade length: 141mm.
Blade thickness: 5mm.
Total length: 263mm.
Weight: 203g.
Sheath: in Kydex
Packaging: Cardboard box with Extrema Ratio logos
Note: -ER-NIM-OP -
ExtremaRatio - BD2 Lucky Black knife - knife
Intended use: Tactical
Type of production: Industrial
Lama production: Italy
Blade: N690Co 58HRC stainless steel
Blade Treatment: MIL-C-13924 Burnishing
Handle: Anticorodal
Blade length: 95mm.
Blade thickness: 3mm.
Length closed: 128mm.
Total length: 224mm.
Thick when closed: 17mm.
Balancing: -
Weight: 104g.
Closure: Liner Lock
Clip: removable in stainless steel
Sheath: -
Packaging: cardboard box with Extrema Ratio logos
Note: -ER-BD2-BK -
ExtremaRatio - BD0 R - Desert - Stone Washed - knife
It is a small basic folder, produced with a technopolymer handle that enhances its resistance and lightness, thanks also to the steel frame. The blade locking mechanism is the tried and tested LINER-LOCK. The model maintains all the features of the previous BF0 model, updated with the new High Speed Razor Opening opening system and with a Sear Point blade.
Type of production: industrial
Blade: stainless steel N690Co 58HRC
Country of production: Italy
Handle: Nylon with stainless steel folders
Blade length: 60mm.
Blade thickness: 2.5mm.
Length closed: 95mm.
Total length: 145mm.
Weight: 52g.
Closure: Liner Lock
Clip: reversible and removable, in stainless steelER-BD0R-DE -
ExtremaRatio - BD0 R - Ranger Green - Stone Washed - knife
It is a small basic folder, produced with a technopolymer handle that enhances its resistance and lightness, thanks also to the steel frame. The blade locking mechanism is the tried and tested LINER-LOCK. The model maintains all the features of the previous BF0 model, updated with the new High Speed Razor Opening opening system and with a Sear Point blade.
Type of production: industrial
Blade: stainless steel N690Co 58HRC
Country of production: Italy
Handle: Nylon with stainless steel folders
Blade length: 60mm.
Blade thickness: 2.5mm.
Length closed: 95mm.
Total length: 145mm.
Weight: 52g.
Closure: Liner Lock
Clip: reversible and removable, in stainless steelER-BD0R-RG -
ExtremaRatio - BD0 R - HCS - Stone Washed - knife
It is a small basic folder, produced with a technopolymer handle that enhances its resistance and lightness, thanks also to the steel frame. The blade locking mechanism is the tried and tested LINER-LOCK. The model maintains all the features of the previous BF0 model, updated with the new High Speed Razor Opening opening system and with a Sear Point blade.
Type of production: industrial
Blade: stainless steel N690Co 58HRC
Country of production: Italy
Handle: Nylon with stainless steel folders
Blade length: 60mm.
Blade thickness: 2.5mm.
Length closed: 95mm.
Total length: 145mm.
Weight: 52g.
Closure: Liner Lock
Clip: reversible and removable, in stainless steelER-BD0R-HC -
ExtremaRatio - BF4 Lucky Black - knife
Intended use: Tactical
Type of production: Industrial
Lama production: Italy
Blade: Stainless steel N690Co 58HRC
Lama treatment: Testudo
Handle: Anticorodal
Blade length: 122mm.
Blade thickness: 3mm.
Length closed: 150mm.
Total length: 277mm.
Thick when closed: 17mm.
Balancing: -
Weight: 137g.
Closure: Liner Lock
Clip: removable in stainless steel
Sheath: -
Packaging: cardboard box with Extrema Ratio logos
Note: -ER-BD4-BK -
ExtremaRatio - BD4 Lucky Desert - knife
Intended use: Tactical
Type of production: Industrial
Lama production: Italy
Blade: Stainless steel N690Co 58HRC
Lama treatment: Satin
Handle: Anticorodal
Blade length: 122mm.
Blade thickness: 3mm.
Length closed: 150mm.
Total length: 277mm.
Thick when closed: 17mm.
Balancing: -
Weight: 137g.
Closure: Liner Lock
Clip: removable in stainless steel
Sheath: -
Packaging: cardboard box with Extrema Ratio logos
Note: -ER-BD4-DE -
Extremaratio - Arditi Black - Single-edged dagger - knife
The particular situation created in the early years of the 1914/18 war, now mired in increasingly complex and protected trenches and fortifications, favored the formation of men who, little by little, specialized in the coup.
Our assault units, the Arditi, had their dagger. It was obtained from the pieces cut away by the long blades of the Vetterli 1870 bayonets, which in the narrow trenches, in the corridors, between the reticulars were only an obstacle. It was certainly a rustic weapon, of recovery, not too beautiful but certainly inexpensive, light, not cumbersome and in expert hands also effective.
Today, on the occasion of the centenary, we remember this important page of Italian military history with a limited series of celebrations of 1918 copies. This version has a burnished blade, a polymer handle and a black cordura sheath.
Intended use: Tactical / Military / Collection
Type of production: Industrial
Country of production: Italy
Blade: stainless steel N690Co 58HRC
Blade treatment: Burnishing MIL-C-13924
Handle: Polymers
Blade length: 167mm.
Blade thickness: 6.3mm.
Total length: 270mm.
Weight: 224g.
Sheath: Nylon leg strap
Packaging: cardboard box with Extrema Ratio logos
Notes: Edition limited edition in 1918 copies - Edition to celebrate the hundred years of the Arditi of ItalyER-AR-BK -
ExtremaRatio - Requiem Black - tactical knife
Multi-purpose tactical knife with a light weight and very well-grip. The stiletto type blade is sharpened only on one side and has a guard. The Requiem is equipped with the innovative nylon liner Aspis expressly studied by Extrema Ratio to allow the quick release of the blade and the fixing inside the passages of the M.O.L.L.E system, thanks to two multiposition clips.
Intended use: Tactical / Multirole
Type of production: Industrial
Country of production: Italy
Blade: stainless steel N690Co hardened to 58HRC
Blade treatment: Burnishing MIL-C-13924
Handle: Forprene
Blade length: 118mm.
Blade thickness: 4mm.
Total length: 238mm.
Weight: 86g.
Sheath: Nylon with two multiposition clips, designed for M.O.L.L.E.
Packaging: cardboard box with Extrema Ratio logos
Note: -ER-REQ-BK -
ExtremaRatio - Requiem HCS - tactical knife
Multi-purpose tactical knife with a light weight and very well-grip. The stiletto type blade is sharpened only on one side and has a guard. The Requiem is equipped with the innovative nylon liner Aspis expressly studied by Extrema Ratio to allow the quick release of the blade and the fixing inside the passages of the M.O.L.L.E system, thanks to two multiposition clips.
Intended use: Tactical / Multirole
Type of production: Industrial
Country of production: Italy
Blade: stainless steel N690Co hardened to 58HRC
Blade treatment: Satin
Handle: Forprene
Blade length: 118mm.
Blade thickness: 4mm.
Total length: 238mm.
Weight: 86g.
Sheath: Nylon with two multiposition clips, designed for M.O.L.L.E.
Packaging: cardboard box with Extrema Ratio logos
Note: -ER-REQ-HC -
ExtremaRatio - Requiem Desert - tactical knife
Multi-purpose tactical knife with a light weight and very well-grip. The stiletto type blade is sharpened only on one side and has a guard. The Requiem is equipped with the innovative nylon liner Aspis expressly studied by Extrema Ratio to allow the quick release of the blade and the fixing inside the passages of the M.O.L.L.E system, thanks to two multiposition clips.
Intended use: Tactical / Multirole
Type of production: Industrial
Country of production: Italy
Blade: stainless steel N690Co hardened to 58HRC
Blade treatment: Satin
Handle: Forprene
Blade length: 118mm.
Blade thickness: 4mm.
Total length: 238mm.
Weight: 86g.
Sheath: Nylon with two multiposition clips, designed for M.O.L.L.E.
Packaging: cardboard box with Extrema Ratio logos
Note: -ER-REQ-DE -
ExtremaRatio - Requiem Ranger Green - tactical knife
Multi-purpose tactical knife with a light weight and very well-grip. The stiletto type blade is sharpened only on one side and has a guard. The Requiem is equipped with the innovative nylon liner Aspis expressly studied by Extrema Ratio to allow the quick release of the blade and the fixing inside the passages of the M.O.L.L.E system, thanks to two multiposition clips.
Intended use: Tactical / Multirole
Type of production: Industrial
Country of production: Italy
Blade: stainless steel N690Co hardened to 58HRC
Blade treatment: Satin
Handle: Forprene
Blade length: 118mm.
Blade thickness: 4mm.
Total length: 238mm.
Weight: 86g.
Sheath: Nylon with two multiposition clips, designed for M.O.L.L.E.
Packaging: cardboard box with Extrema Ratio logos
Note: -ER-REQ-RG -
ExtremaRatio - Requiem Wolf Gray - tactical knife
Multi-purpose tactical knife with a light weight and very well-grip. The stiletto type blade is sharpened only on one side and has a guard. The Requiem is equipped with the innovative nylon liner Aspis expressly studied by Extrema Ratio to allow the quick release of the blade and the fixing inside the passages of the M.O.L.L.E system, thanks to two multiposition clips.
Intended use: Tactical / Multirole
Type of production: Industrial
Country of production: Italy
Blade: stainless steel N690Co hardened to 58HRC
Blade treatment: Satin
Handle: Forprene
Blade length: 118mm.
Blade thickness: 4mm.
Total length: 238mm.
Weight: 86g.
Sheath: Nylon with two multiposition clips, designed for M.O.L.L.E.
Packaging: cardboard box with Extrema Ratio logos
Note: -ER-REQ-WG -
ExtremaRatio - Shrapnel OG Testudo - knife
Extrema Ratio Shrapnel
Il primo coltello Extrema Ratio che, pur avendo una lunghezza totale di soli 21 centimetri, mantiene inalterate tutte le caratteristiche tecnico/tattiche dei precedenti modelli.
Impiego: coltello di backup
Lama in acciaio N690 a 58HRC con rivestimento testudo
Spessore lama: 6,3 mm.
Lunghezza lama: 110 mm.
Lunghezza totale: 210 mm.
Manicatura in Forprene
Fodero in ABS con aggancio Tek-Lok con sistema automatico di ritenzione del coltello.ER-SHR-BK -
ExtremaRatio - 39-09 Ordinanza COFS - Special Forces Operational Command - knife
This project, sponsored by the COFS (Special Forces Operational Command) in the person of Gen. Bertolini, had already been suggested by some collectors of vintage white weapons.
The restyling of the famous “paratrooper assault dagger mod. 1939,” constitutes an important piece of Italian military history. The knife, while borrowing its line, structure and proportions from the original, has been toughened, enriched with functional modifications and made with materials to modern military specifications.
The result of these few modifications is an extremely functional and effective dagger. The scabbard is ankle-high to be carried as Italian paratroopers usually carry their bayonets. The 39-09 ORDINANCE COFS version is the burnished version with COFS logo and motto, double scabbard, both ankle and parry, and engraved ABS case.
Intended Use: Tactical/CollectionProduction Type: Industrial
Country of Production: Italy
Blade: Stainless steel N690Co 58HRC
Blade Finish: Burnishing MIL-C-13924
Handle: Forprene
Blade Length: 195mm.
Blade thickness: 6.3mm.
Total length: 315mm.
Balance: on the guard branch
Weight: 342g.
Sheaths: 1 Cordura and ABS thigh scabbard + 1 Cordura and ABS tactical scabbard
Packaging: ABS case with COFS and Extrema Ratio logos
Notes: -4255C -
ExtremaRatio - Ultramarine Dive Knife - diving knife
ULTRAMARINE is the result of four years of research and development carried out by EXTREMA RATIO in collaboration with military sub-units of the Italian special units, divisions of law enforcement and civil professionals. The units responsible for underwater and amphibious operations use a series of specialized knives .The objective of the project is to replace all these knives with a single tool, versatile but at the same time, aimed at fulfilling all the functions required by the operators of these delicate specializations.
Intended use: military / sub / multi-role
Type of production: Industrial
Lama production: Italy
Blade: stainless steel N690Co 58HRC with groove spins shackles
Blade treatment: testudo
Handle: Non-slip abrasive polyamide, stainless steel skull crasher and Cordura elastic gripping system (Cordona)
Blade length: 150mm.
Blade thickness: 6.3mm.
Length closed: -
Total length: 298mm.
Thick when closed: -
Balancing: set back, at 4cm.
Weight: 390g.
Closing: -
Clip: -
Sheath: modular - soft shell in closed cell polyethylene foam, rigid ABS shell with cordura leg system with anti-extraction safety catch. It can also be used as a rigid thigh strap only with an ABS sheath or as a multi-position sheath thanks to the double Tek-Lok attachment included
Packaging: ABS case with Extrema Ratio logos
Notes: the package includes a spray lubricant, a small diamond sharpener placed in the sheath, a large diamond sharpener joined to the ABS sheath, spare straps to modulate the sheath, two Tek-Lok attachments, spare screws, or -ring replacement, rubber to clean the blade.
Invia commenti
Cronologia
Salvate
CommunityER-UMA -
ExtremaRatio - 39-09 Operativo - coltello
Questo progetto, patrocinato dal COFS (Comando Operativo Forze Speciali) nella persona del Gen.Bertolini, era gia stato suggerito da alcuni collezionisti di armi bianche d'epoca.
Il restyling del famoso "Pugnale da paracadutista assaltatore mod.1939", un importante pezzo di storia militare italiana.
Il coltello, pur mutuando la linea, la struttura e le proporzioni dell'originale, è stato irrobustito, arricchito di modifiche funzionali e realizzato con materiali a specifiche militari moderne.
Inaspettatamente, il risultato di queste poche modifiche è un pugnale estremamente funzionale ed efficace, assolutamente competitivo con i migliori coltelli militari contemporanei.
Il fodero è rigido da caviglia, alla maniera tipica in cui viene portata la baionetta dai paracadutisti italiani.
Destinazione d'uso: Tattico
Tipo di produzione: Industriale
Produzione Lama: Italia
Lama: In acciaio inox N690Co 58HRC
Trattamento Lama: Testudo
Manicatura: Forprene
Lunghezza lama: 195mm.
Spessore lama: 6.3mm.
Lunghezza chiuso: -
Lunghezza totale: 315mm.
Spessore da chiuso: -
Bilanciatura: sul ramo di guardia
Peso: 342g.
Chiusura: -
Clip: -
Fodero: Cordura e ABS
Confezione: scatola in cartone con loghi Extrema Ratio
Note: -4255 -
Extremaratio - Arditi Black - Single Edge Dagger - PRIVATE COLLECTION - Knife
KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Provenance: withdrawn from a private collection, previously purchased.
* Condition: Overall in good condition
* Commercially available: Still in catalog.
* Sharpening: Factory.
* Marks on blade: Marks and abrasions.
* Marks on handle: Small signs of wear and tear.
* Box: Present, not complete (absence of warranties and plastic bags).
* Scabbard: Present, in good condition.
* Manuals, Certificates and Warranties: - -
* Checked and Certified by our in-house laboratoryIntended Use: Tactical/Military/Collection
Production type: Industrial
Country of Production: Italy
Blade: stainless steel N690Co 58HRC
Blade Treatment: Burnishing MIL-C-13924
Handle: Polymer
Blade Length: 167mm.
Blade thickness: 6.3mm.
Total length: 270mm.
Weight: 224g.
Sheath: Nylon thigh piece
Packaging: cardboard box with Extrema Ratio logos
Notes: Limited edition in 2018 pieces - Edition to celebrate 100 years of the Italian ArditesER-AR-BK-CP -
ExtremaRatio - Shrapnel OG - Satin San Mai CoS Limited Edition - PRIVATE COLLECTION - knife
KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Origin: Withdrawn from a private collection, previously purchased.
* Condition: Like new
* Commercially available: Discontinued, only made in 30 pieces
* Sharpening: Factory sharpened
* Marks on blade: None
* Marks on handle: None
* Box: Present
* Scabbard: Present
* Manuals, Certificates and Warranties: Present
* Checked and Certified by our in-house laboratory
Use: tactical, sporting, hiking, collectionBlade: integral, rolled Japanese stainless steel (San Mai) with 61.5HRC cryogenically hardened CoS cutting edge
Handle: forprene
Blade length: 90mm.
Blade thickness: 6.5mm.
Total length: 210mm.
Balance: set back 0.5cm. from the guard branch
Weight: 214g.
Sheath: ABS with multi-position Tek-Lok attachment
Notes: new knife, withdrawn from private collectionsERCC-SH-CP -
ExtremaRatio - BD2 R Satin knife - PRIVATE COLLECTION - knife
KNIFE RETIRED FROM PRIVATE COLLECTION
* Type: Previously Purchased
* Condition: In very good condition
* NO longer available on the market
* Sharpening: Factory
* Marks on blade: None
* Marks on handle: Very small marks
* Box: Present
* Sheath: -
* Manuals, Certificates and Guarantees: ER
* Checked and certified by our internal laboratoryMedium folding bag from the BD series. It is produced with an aluminum handle which enhances its characteristics of resistance and lightness, also thanks to the steel frame. The model maintains all the features of the BD2 updated with the new High Speed Razor Opening system.
Intended use: Sports / EDC
Type of production: Industrial
Blade production: Italy
Blade: N690Co 58HRC stainless steel
Blade treatment: Satin
Handle: Anticorodal
Blade length: 95mm.
Blade thickness: 3mm.
Closed length: 128mm.
Total length: 224mm.
Closed thickness: 17mm.
Weight: 105g.
Closure: Liner Lock
Clip: removable in stainless steel
Packaging: cardboard box with Extrema Ratio logos
Note: -AP-ER-BD2R -
ExtremaRatio - Caimano Nero N.A. - Ranger XXV Anniversarium Limited Edition - knife
Extrema Ratio Caimano Nero N.A. Ranger XXV Anniversarium Limited Edition is a limited series version of only 250 pieces that preserves intact all the features of the famous Caimano Nero N.A. model, a non-automatic version of the tactical knife that Extrema Ratio delivered to the G.O.I. (Gruppo Operativo Incursori) of the Italian Navy.
The Extrema Ratio Caimano Nero N.A. Ranger XXV Anniversarium Limited Edition comes in an IP67-certified watertight Polypropylene technical case, with pressurization valve, weatherproof, dustproof and shockproof, inside of which is also an Extrema Ratio 25th Anniversary commemorative coin and metal plaque with the progressive number of the limited series.
Intended Use: Tactical/Military
Type of manufacture: industrial
Blade: stainless steel N690Co 58HRC
Country of Production: Italy
Handle: Anticorodal
Blade length: 93mm.
Blade thickness: 4mm.
Length closed: 140mm.
Total length: 231mm.
Weight: 180g.
Closure: Liner Lock with additional safety catch, when knife is open
Clip: deep pocket, reversible and removable, stainless steel
Notes: Limited edition made of only 250 pieces accompanied by polypropylene case and commemorative coinER-CAI-RLE -
ExtremaRatio - S-Thil Stone Washed - knife
Extrema Ratio S-THIL STONE WASHED is a tactical backup knife with monolithic construction machined from a single piece of 5 mm thick BOHLER N690 steel, developed in collaboration with Thilo designer Arnd Schiller.
The blade, a spear point type, is hardened to 58 HRC in order to achieve the best balance of edge retention and strength, features a false counterbore at the top that enhances penetration and point work characteristics, and has a full-length groove (fuller) that flows elegantly from the blade to the handle. The blade is milled integrally to the knife to enhance its compactness and lightness, maintaining a minimal thickness while still having a profile reminiscent of the classic Extrema Ratio handle.
That profile goes to form two small guards and a comfortable thumb rest to prevent the hand from slipping towards the blade. On the end are a skull crusher with a diamond-shaped tip and a slot that allows a wrist strap to be attached to the knife or the handle to be fitted with paracord coiling.
The molded nylon sheath is designed to be extremely flat with very small side dimensions to make it as compact as possible. The design of the knife makes it ambidextrous, allowing it to be inserted into the sheath with the blade cutting edge to the right or left. The double retention system integral to the sheath consists of four pressure elements that work only two at a time, depending on right/left-handed use, while the nylon textile part has a button that allows the knife to be secured to the sheath.
The end of the sheath has a hole to expel liquids or debris inside. The ability to attach belt clip, ulticlip, malice clip makes it extremely versatile. You can also attach the sheath to the M.O.L.L.E. system by braiding the paracord.
Intended Use: Tactical/Multi-role
Production type: Industrial
Country of manufacture: Italy
Blade: stainless steel N690Co hardened to 58HRC
Blade treatment: Stonewashed
Handle: Steel N690Co 58HRC
Blade length: 119mm.
Blade thickness: 5mm.
Total length: 230mm.
Weight: 123g.
Sheath: Nylon
Packaging: cardboard box with Extrema Ratio logos
Notes: -ER-STHIL-SW -
ExtremaRatio - S-Thil Black Warfare knife - XXV Anniversary Special Edition - knife
Extrema Ratio S-THIL Black Warfare, a special version of the S-THIL model, is a backup knife with a monolithic structure machined from a single piece of 5 mm thick BOHLER N690 steel, developed in collaboration with the designer Thilo Arnd Schiller. The spear point type blade is hardened to 58 HRC in order to obtain the best balance between edge retention and strength, has a false edge in the upper part which enhances the characteristics of penetration and tip work, and is equipped with a Full length furrow flowing elegantly from blade to grip.
The blade is milled integrally with the knife to enhance its compactness and lightness, maintaining a minimum thickness even with a profile that recalls the classic Extrema Ratio handle. This profile forms two small guards and a comfortable thumb rest in order to prevent the hand from slipping towards the blade. On the end there is a skull crusher with a diamond-shaped tip and a slot that allows you to attach a wrist strap to the knife or to equip the handle with paracord winding.
The special Black Warfare version uses the innovative and original Geotech Camo pattern, created by laser engraving. The molded nylon sheath has been designed to be extremely flat and with very small lateral dimensions, in order to make it as compact as possible. The design of the knife makes it ambidextrous, allowing it to be inserted into the sheath with the cutting edge of the blade to the right or left. The double retention system integral with the sheath is made up of four pressure elements that work only two at a time, depending on right/left use, while in the nylon textile part there is a button that allows you to secure the knife to the sheath . The end of the sheath has a hole that allows you to expel liquids or residues inside. The possibility of applying belt clips, ulticlips, malice clips makes it extremely versatile. It is also possible to hook the sheath to the M.O.L.L.E. system. weaving the paracord lanyard.
The S-thil Black Warfare is supplied in an IP67 certified watertight Polypropylene technical case, with pressurization valve, resistant to atmospheric agents, dust and shocks. Inside there are also the Nylon sheath, the double ULTICLIP and the double grain sharpening plate (ceramic abrasive and synthetic diamond).
Intended use: Tactical / Multirole
Type of production: Industrial
Country of production: Italy
Blade: N690Co stainless steel hardened to 58HRC
Blade treatment: BURNISHING MIL-C-13924 GEOTECH CAMO
Handle: N690 steel
Blade length: 119mm.
Blade thickness: 5mm.
Total length: 230mm.
Weight: 123g.
Sheath: in Kydex, with double multiposition ULTICLIP attachment clip
Packaging: Polypropylene case with S-Thil / Extrema Ratio logos
Notes: exclusive briefcase to celebrate the company's 25th anniversaryER-STHIL-BWLE -
ExtremaRatio - Col Moschin Satin knife in San Mai V-TOKU2 - Limited Edition - knife
Japanese steel blends with Italian excellence
For this 2020 collaboration, exclusive of Collini Cutlery, we have decided to propose a series of best sellers produced by Extrema Ratio. Knives made with the famous San Mai steel produced by the Japanese Takefu Steel. Specifically, we used V-Toku2 carbonaceous at 62 / 63HRC for the central plate and SUS410 stainless steel for the two external plates, in order to guarantee a very high cutting capacity, penetration and sealing of the wire together with an ease of re-sharpening. and maintenance but at the same time the blade has a remarkable resistance to corrosion and an important increase in resilience given by the type of external steel and by the laminated structure.
Col Moschin model: for this First Production Run a run of 11 pieces was produced, numbered from 1 to 11.
Special purpose cutting knife, specially developed for the 9th Col Moschin Parachute Assault Regiment, elite unit of the Folgore brigade.
Use: tactical, sports, hiking, collection
Blade: integral, in laminated Japanese steel (San Mai) with V-Toku2 (carbonaceous) cutting edge at 62 / 63HRC and external SUS410 (stainless steel) scales
Handle: forprene
Blade length: 160mm.
Blade thickness: 6.5mm.
Total length: 290mm.
Balance: set back to 0.5cm. from the guard branch
Weight: 265g.
Sheath: modular tactical, from thigh or belt, in Nylon
Notes: Numbered edition - cardboard box with Extremaratio logos and certificate - being the cutting edge in carbon steel it is advisable, in order to keep the blade in perfect condition, to protect the edge with a light surface of oil.
As in the ancient Japanese Samurai swords.Rolled steel - imported into Italy by Collini Steel directly from Japanese Takefu Steel - is based on the ancient Japanese tradition in the creation of the famous Samurai swords. In fact, as early as 1100 the expert Japanese blacksmiths combined different materials together to give the Katana swords incredible cutting capabilities combined with a resistance and flexibility previously unknown. It is thanks to this revolutionary construction technique that Samurai swords have been preserved to this day, becoming one of the most fascinating objects made by man. Following this tradition applied to modern metallurgy, today we are able to have technologically advanced steels already tested and used in cutlery also by famous brands such as Fallkniven, Cold Steel, Mcusta, Kai, Sog, Zwilling, Rockstead, etc.
Characteristics of San Mai steel: These are different types of metals bonded together to create a composite that encloses and intensifies the strengths of the metals individually taken:
- Longer tool life
thanks to the use of very high quality steels with high carbon content (VG10, CoS, Shiro) or sintered (SPG2), in the heart of the sheet (Core Steel), the blade, once hardened, achieves decidedly hardness and cutting performance higher than those achieved with the use of traditional steels.- Greater resilience
built with the principle of Japanese swords, multilayer steel is difficult to break thanks to the toughness of the central steel (Core Steel) and the elasticity of the steel used for the side coating (Stainless Steel).- Better corrosion resistance
the steel used for the external layers (Stainless Steel) guarantees the blade a high resistance to corrosion. The combination of the two or more materials used by Takefu Steel generates, on a galvanic level, a structure that improves corrosion resistance even on the wire.- Easy processing even after heat treatment
although steel normally becomes harder after quenching, the lateral steel used in multilayer processing does not lose its softness and allows easy processing, drilling or welding even after heat treatment. For an optimal performance of the blade, cryogenic treatment is recommended.- Improvement of the aesthetic result
The knives made with multi-state steel or damascus pattern at the end of the processing are aesthetically elegant, refined and highly appreciated by collectors all over the world.For more information: collinisteel
Invia commenti
Cronologia
Salvate
CommunityER-COL-VT -
ExtremaRatio - Col Moschin Compact Satin knife in San Mai V-TOKU2 - Limited Edition - knife
Japanese steel blends with Italian excellence
For this 2020 collaboration, exclusive of Collini Cutlery, we have decided to propose a series of best sellers produced by Extrema Ratio. Knives made with the famous San Mai steel produced by the Japanese Takefu Steel. Specifically, we used V-Toku2 carbonaceous at 62 / 63HRC for the central plate and SUS410 stainless steel for the two external plates, in order to guarantee a very high cutting capacity, penetration and sealing of the wire together with an ease of re-sharpening. and maintenance but at the same time the blade has a remarkable resistance to corrosion and an important increase in resilience given by the type of external steel and by the laminated structure.
Col Moschin Compact model: for this First Production Run a run of 10 pieces numbered from 1 to 10 was created.
The lethality of the COL MOSCHIN knife in compact version. Supplied with rigid belt sheath and BELT-CLIP. The rigid sleeve can be positioned horizontally, vertically or in a 45 ° inclined position
Use: tactical, sports, hiking, collection
Blade: integral, in laminated Japanese steel (San Mai) with V-Toku2 (carbonaceous) cutting edge at 62 / 63HRC and external SUS410 (stainless steel) scales
Handle: forprene
Blade length: 110mm.
Blade thickness: 6.5mm.
Total length: 212mm.
Balance: set back to 0.5cm. from the guard branch
Weight: 209g.
Sheath: ABS with multi-position Tek-Lok attachment
Notes: Numbered edition - cardboard box with Extremaratio logos and certificate - being the cutting edge in carbon steel it is advisable, in order to keep the blade in perfect condition, to protect the edge with a thin surface of oil.
As in the ancient Japanese Samurai swords.Rolled steel - imported into Italy by Collini Steel directly from Japanese Takefu Steel - is based on the ancient Japanese tradition in the creation of the famous Samurai swords. In fact, as early as 1100 the expert Japanese blacksmiths combined different materials together to give the Katana swords incredible cutting capabilities combined with a resistance and flexibility previously unknown. It is thanks to this revolutionary construction technique that Samurai swords have been preserved to this day, becoming one of the most fascinating objects made by man. Following this tradition applied to modern metallurgy, today we are able to have technologically advanced steels already tested and used in cutlery also by famous brands such as Fallkniven, Cold Steel, Mcusta, Kai, Sog, Zwilling, Rockstead, etc.
Characteristics of San Mai steel: These are different types of metals bonded together to create a composite that encloses and intensifies the strengths of the metals individually taken:
- Longer tool life
thanks to the use of very high quality steels with high carbon content (VG10, CoS, Shiro) or sintered (SPG2), in the heart of the sheet (Core Steel), the blade, once hardened, achieves decidedly hardness and cutting performance higher than those achieved with the use of traditional steels.- Greater resilience
built with the principle of Japanese swords, multilayer steel is difficult to break thanks to the toughness of the central steel (Core Steel) and the elasticity of the steel used for the side coating (Stainless Steel).- Better corrosion resistance
the steel used for the external layers (Stainless Steel) guarantees the blade a high resistance to corrosion. The combination of the two or more materials used by Takefu Steel generates, on a galvanic level, a structure that improves corrosion resistance even on the wire.- Easy processing even after heat treatment
although steel normally becomes harder after quenching, the lateral steel used in multilayer processing does not lose its softness and allows easy processing, drilling or welding even after heat treatment. For an optimal performance of the blade, cryogenic treatment is recommended.- Improvement of the aesthetic result
The knives made with multi-state steel or damascus pattern at the end of the processing are aesthetically elegant, refined and highly appreciated by collectors all over the world.For more information: collinisteel
ER-COLC-VT -
ExtremaRatio - E.C.M. Cobra - ECM Einsatzkommando - Knife
The Extreme Ratio E.C.M. (Einsatzkommando Cobra Messer) is a fixed blade multipurpose knife, designed for operational uses for the famous Einsatzkommando "Cobra" special unit of the Austrian police, whose logo is laser engraved on the heel of the blade. The Extreme Ratio E.C.M. it combines the characteristics of a practical tool and those of a reliable weapon, in a compact configuration with a total weight of 240g.
The blade is made of Böhler N690 steel, hardened to 58 HRC and is 116 mm long, 5 mm thick and equipped with a flat edge. The profile of the blade is of the modified spear point type, with a false counter-thread ¾ in length on the back and a lower guard to protect the hand during use.
Both the guard and the knob have holes to facilitate the attachment of the knife to various tools or for the passage of laces. The blade has a Carbon-based DLC (Diamond-Like Carbon) surface coating making it hyper-resistant to abrasion and chemical aggression.
Given the heavy use of the tool, for the handle, instead of the usual Forprene, the more performing high-strength G10 is used.
It is fixed to the FULL TANG profile by two through screws and maintains all the known ergonomic characteristics of the Extrema Ratio handles. Being a knife designed for professional use, great importance was given to ease of port, accessibility and rapid extraction.
The polymer sheath is versatile and can be carried on a service belt or mounted on M.O.L.L.E. of tactical vests, backpacks or other equipment.
Intended use: Tactical / Military
Type of production: Industrial
Country of production: Italy
Blade: Bohler N690Co stainless steel at 58HRC
Blade treatment: DLC (Diamond Like Coating)
Handle: G10
Blade length: 106mm.
Blade thickness: 5mm.
Total length: 233mm.
Weight: 240g.
Sheath: Synthetic, polymer, MOLLE compatible
Packaging: Cardboard box with Extrema Ratio logosER-ECM -
ExtremaRatio - Contact C Knife Black - tactical knife
Compact version of the CONTACT, the CONTACT C has a spearhead blade, in Böhler N690 steel with a hardness of 58 HRC, flat edge, lower guard branch and full-length lightening release.
The Forprene handle with locking by threaded tang makes the knife solid and well balanced.
The MOLLE compatible sheath is made of shockproof nylon with a system that avoids shaking noises, is equipped with a two-button safety flap, a thigh with anti-rotation rubber reinforcement and a reversible ambidextrous 2nd level retention system: the simple pressure on the trigger unlocks the blade.
Intended use: Tactical / Backup
Type of production: Industrial
Country of production: Italy
Blade: in N690Co 58HRC stainless steel
Blade treatment: Mil-C-13924 burnishing
Handle: Forprene
Blade length: 128mm.
Blade thickness: 6.3mm.
Total length: 258mm.
Weight: 273g.
Sheath: Nylon
Packaging: Cardboard box with Extrema Ratio logos
Note: -ER-CC-BK -
ExtremaRatio - Shrapnel OG Satin - San Mai V-TOKU2 Limited Edition - knife
Japanese steel merges with Italian excellence
For this 2019/2020 collaboration, exclusive to Collini Cutlery, we have decided to offer a series of best sellers produced by Extrema Ratio. Knives made with the famous San Mai steel produced by the Japanese Takefu Steel. Specifically, for the central sheet we used the carbonaceous V-Toku2 at 62 / 63HRC and the stainless SUS410 for the two external sheets, in order to guarantee a very high cutting, penetration and sealing capacity of the wire together with an ease of regrinding and maintenance but at the same time the blade has a remarkable resistance to corrosion and an important increase in resilience given by the type of foreign steel and the laminated structure.
SHRAPNEL OG model: for this First Production Run, a circulation of 10 pieces numbered from 1 to 10 was produced.
SHRAPNEL OG is a truly multi-purpose "back-up", with strong combat attitudes. The leaf blade is characterized by a wide flat winding, with a narrow sharpening angle which makes it particularly sharp. The rigid sheath can be positioned horizontally, vertically or inclined at 45 °. The SHRAPNEL OG is produced without the top guard.
Use: tactical, sports, hiking, collection
Blade: integral, in Japanese laminated steel (San Mai) with cutting edge in V-Toku2 (carbon) at 62 / 63HRC and external cheeks in SUS410 (stainless steel)
Handle: forprene
Blade length: 90mm.
Blade thickness: 6.5mm.
Total length: 210mm.
Balancing: set back to 0.5cm. from the guard branch
Weight: 190g.
Sheath: ABS with Tek-Lok multiposition attachment
Notes: Numbered edition - cardboard box with Extremaratio logos and certificateAs in the ancient swords of the Japanese Samurai.
Rolled steel - imported into Italy from Collini Steel directly from the Japanese Takefu Steel - is based on the ancient Japanese tradition in the creation of the famous Samurai swords. Already in 1100 the expert Japanese blacksmiths in fact combined different materials to give the Katana swords incredible cutting capabilities combined with a resistance and flexibility previously unknown. It is thanks to this revolutionary construction technique that the swords from Samurai have been preserved to the present day becoming one of the most fascinating objects made by man. Following this tradition applied to modern metallurgy, we are now able to have technologically advanced steels already tested and used in cutlery also by famous brands such as Fallkniven, Cold Steel, Mcusta, Kai, Sog, Zwilling, Rockstead, etc.
Characteristics of San Mai steel: These are different types of metals bonded together to create a composite that encloses and intensifies the strengths of the metals taken individually:
- Longer tool life
thanks to the use of high quality steel with a high carbon content (V-Toku2, VG10, CoS, Shiro) or sintered (SPG2), in the heart of the sheet (Core Steel), the blade once hardened, reaches hardness and cutting performance significantly higher than that achieved with the use of traditional steels.- Greater resilience
built with the principle of Japanese swords, multilayer steel is difficult to break thanks to the toughness of the central steel (Core Steel) and the elasticity of the steel used for the lateral coating (Stainless Steel).- Better corrosion resistance
the steel used for the external layers (Stainless Steel) guarantees the blade a high resistance to corrosion. The combination of the two or more materials used by Takefu Steel generates, at the galvanic level, a structure that improves the corrosion resistance also on the wire.- Easy processing even after heat treatment
although normally the steel becomes harder after hardening, the lateral steel used in multi-layer processing does not lose its softness and allows easy processing, drilling or welding even after heat treatment. For optimum performance of the blade, cryogenic treatment is recommended.- Improvement of the aesthetic result
The knives made with multistate steel or with damask pattern at the end of the processing are aesthetically elegant, refined and highly appreciated by collectors all over the world.ERCC-P-S-VT2 -
ExtremaRatio - Contact Desert Knife Stone Washed - tactical knife
Intended use: Tactical / Multirole
Type of production: Industrial
Country of production: Italy
Blade: stainless steel N690Co 58HRC
Blade treatment: Stone Washed
Handle: Forprene
Blade length: 162mm.
Blade thickness: 6.3mm.
Total length: 293mm.
Weight: 300g.
Sheath: in Nylon
Packaging: Cardboard box with Extrema Ratio logos
Note: -Extrema Ratio developed the first knife of a new production line, called CONTACT.
It has a blade with a lance-shaped profile, a flat grinding and a diamond-shaped geometry. It has got a lower guard branch to protect itself from incidental cuts, upper jumping to improve grip, concave fuller along the length of the blade and a generous thickness blade (6.30mm) the now famous Requiem, revisited in proportions and in some technical features. The first of a new line of multipurpose knives.
The blade is made in Böhler N690 steel with a hardness of 58 HRC and a chemical burnishing coating for the Black version. All other colors in production have got a blade with Stone Washed finishing. The handle is still in forprene. It is more assembled by the side screws but thanks to the shank in truncated cone-shaped stainless steel that is screwed to the bottom and goes to fit inside a special seat, which makes it solid. In this way the knife is well balanced. The sheath is minimalist; most of the fabric has been cut off; it has got a 2nd level retention system, remembering the style of the model it was inspired by.
The main shell is injection-molded in shockproof nylon. The secondary retention system is reversible for ambidextrous users. The blade is guided through the conception of the blade. To extract the blade, to pressure the trigger will be sufficient, thus releasing the safety that holds securely in the sheath. In the horizontal slits of the sheath of a system, which fixes the blade to avoid shaking noises when it is stored inside. The back side of the nylon sheath is M.O.L.L.E. compatible.
The textile part is reduced to its minimum and has got the classic two-button safety strap with a belt loop Extrema Ratio aims to reduce the size of the knife, but not saving on the structural strength and safety accessories.
so be used as glass breakers
ER-CONT-DES -
ExtremaRatio - Nimbus Special - Collector's Edition - Knife
Born from the revisitation of the 39-09 model, the Nimbus was developed and chosen by the 183rd "Nembo" Paratrooper Regiment as a commemorative knife of the events of Case Grizzano which on 19 April 1945 saw the Nembo paratroopers engaged against the paratroopers of a German division . The clashes raged for 12 hours and were often resolved by hand-to-hand combat with the white weapon. A few days after the end of the Second World War one third of the battalion's men remained on the field, but their sacrifice led to the conquest of the battle. The knife in addition to wanting to commemorate an important event of our Armed Forces is the result of a development that has been carefully studied also in the technical aspects, so as to make it suitable for a concrete operational use.
Particular attention has been paid to taking care of the dimensions, the shape and the search for solutions such as the kydex sheath, which is designed to make the knife an instrument capable of adapting to the most complex requirements of the port.
The light and compact blade meets the demands of a modern tactical knife today.
Intended use: Collection
Type of production: Industrial
Country of production: Italy
Blade: stainless steel N690Co 58HRC
Blade treatment: Satin finish
Handle: Wood
Blade length: 141mm.
Blade thickness: 5mm.
Total length: 263mm.
Weight: 203g.
Sheath: in Leather
Packaging: display case
Notes: -ER-NIM-SP -
ExtremaRatio - BD2 Lucky Desert knife - knife
Intended use: Tactical
Type of production: Industrial
Lama production: Italy
Blade: N690Co 58HRC stainless steel
Lama treatment: Satin
Handle: Anticorodal
Blade length: 95mm.
Blade thickness: 3mm.
Length closed: 128mm.
Total length: 224mm.
Thick when closed: 17mm.
Balancing: -
Weight: 104g.
Closure: Liner Lock
Clip: removable in stainless steel
Sheath: -
Packaging: cardboard box with Extrema Ratio logos
Note: -ER-BD2-DE -
ExtremaRatio - BD0 R - Black - Stone Washed - knife
It is a small basic folder, produced with a technopolymer handle that enhances its resistance and lightness, thanks also to the steel frame. The blade locking mechanism is the tried and tested LINER-LOCK. The model maintains all the features of the previous BF0 model, updated with the new High Speed Razor Opening opening system and with a Sear Point blade.
Type of production: industrial
Blade: stainless steel N690Co 58HRC
Country of production: Italy
Handle: Nylon with stainless steel folders
Blade length: 60mm.
Blade thickness: 2.5mm.
Length closed: 95mm.
Total length: 145mm.
Weight: 52g.
Closure: Liner Lock
Clip: reversible and removable, in stainless steelER-BD0R-BK -
ExtremaRatio - Shrapnel One Knife - Knife
Intended use: Tactical / Military
Type of production: Industrial
Lama production: Italy
Blade: N690Co stainless steel hardened to 58HRC
Blade treatment: Burnishing MIL-C-13924
Handle: Forprene
Blade length: 157mm.
Blade thickness: 6.3mm.
Total length: 287mm.
Weight: 289g.
Sheath: tactical, cordura, compatible with M.O.L.L.E.
Packaging: cardboard box with Extrema Ratio logos
Notes: A blade dedicated to those who love taking care of style and details ... without sacrificing the typical Extrema Ratio performanceER-SH-ONE -
Extremaratio - Arditi Deluxe - Single-edged dagger - Limited Collector's Edition - Knife
The particular situation created in the early years of the 1914/18 war, now mired in increasingly complex and protected trenches and fortifications, favored the formation of men who, little by little, specialized in the coup.
Our assault units, the Arditi, had their dagger. It was obtained from the pieces cut away by the long blades of the Vetterli 1870 bayonets, which in the narrow trenches, in the corridors, between the reticulars were only an obstacle. It was certainly a rustic weapon, of recovery, not too beautiful but certainly inexpensive, light, not cumbersome and in expert hands also effective.
Today, on the occasion of the centenary, we recall this important page of Italian military history with a limited celebratory series in only 100 numbered copies. This version has a satin blade and a walnut wood handle and is sold with a wooden box and leather sheath.
Intended use: Tactical / Military / Collection
Type of production: Industrial
Country of production: Italy
Blade: stainless steel N690Co 58HRC
Blade treatment: Satin
Handle: Walnut wood
Blade length: 167mm.
Blade thickness: 6.3mm.
Total length: 270mm.
Weight: 224g.
Sheath: leather thigh-strap
Packaging: wooden box
Notes: Limited edition in 100 numbered copies - Edition to celebrate the hundred years of the Italian ArditiER-AR-D -
ExtremaRatio - Defender 2 DG Black - Knife
Combat version of the Scout model with ultra-slim shape. The 118 mm blade is lightened in its structure by the bloodstream. It is produced in two versions: with single guard and upper grip or, in the DG version, with double guard for a safer grip in the bushes. It comes with black Kydex sheath with attachment to the M.O.L.L.E. system.
Intended use: Tactical
Type of production: Industrial
Country of production: Italy
Blade: Stainless Steel Bohler N690Co at 58HRC
Blade treatment: MIL-C-13924 grinding
Handle: Forprene
Blade Length: 118mm.
Blade thickness: 5mm.
Overall length: 232mm.
Weight: 146g.
Sheath: In Kydex, compatible with M.O.L.L.E.
Packing: Cardboard box with Extrema Ratio logosER-DEF2DG-BK -
ExtremaRatio - Defender 2 Black - Knife
Combat version of the Scout model with ultra-slim shape. The 118 mm blade is lightened in its structure by the bloodstream. It is produced in two versions: with single guard and upper grip or, in the DG version, with double guard for a safer grip in the bushes. It comes with black Kydex sheath with attachment to the M.O.L.L.E. system.
Intended use: Tactical
Type of production: Industrial
Country of production: Italy
Blade: Stainless Steel Bohler N690Co at 58HRC
Blade treatment: MIL-C-13924 grinding
Handle: Forprene
Blade Length: 118mm.
Blade thickness: 5mm.
Overall length: 232mm.
Weight: 140g.
Sheath: In Kydex, compatible with M.O.L.L.E.
Packing: Cardboard box with Extrema Ratio logosER-DEF2-BK -
ExtremaRatio - Defender 2 DG Stone Washed - Knife
Combat version of the Scout model with ultra-slim shape. The 118 mm blade is lightened in its structure by the bloodstream. It is produced in two versions: with single guard and upper grip or, in the DG version, with double guard for a safer grip in the bushes. It comes with black Kydex sheath with attachment to the M.O.L.L.E. system.
Intended use: Tactical
Type of production: Industrial
Country of production: Italy
Blade: Stainless Steel Bohler N690Co at 58HRC
Blade Treatment: Satin
Handle: Forprene
Blade Length: 118mm.
Blade thickness: 5mm.
Overall length: 232mm.
Weight: 146g.
Sheath: In Kydex, compatible with M.O.L.L.E.
Packing: Cardboard box with Extrema Ratio logosER-DEF2DGSW -
ExtremaRatio - Defender 2 Stone Washed - Knife
Combat version of the Scout model with ultra-slim shape. The 118 mm blade is lightened in its structure by the bloodstream. It is produced in two versions: with single guard and upper grip or, in the DG version, with double guard for a safer grip in the bushes. It comes with black Kydex sheath with attachment to the M.O.L.L.E. system.
Intended use: Tactical
Type of production: Industrial
Country of production: Italy
Blade: Stainless Steel Bohler N690Co at 58HRC
Blade Treatment: Satin
Handle: Forprene
Blade Length: 118mm.
Blade thickness: 5mm.
Overall length: 232mm.
Weight: 140g.
Sheath: In Kydex, compatible with M.O.L.L.E.
Packing: Cardboard box with Extrema Ratio logosER-DEF2-SW -
ExtremaRatio - Shrapnel OG Satin in San Mai CoS - knife
For this new exclusive collaboration with Extrema Ratio we decided to propose a best seller in the world of cutlery, the Shrapnel model. It's a satin blade version but the most important thing is that has been used, for the first time in Italy, the famous Japanese Steel San Mai produced by Takefu Steel. Specifically, we used the CoS (Cobalt Special, considered mechanically superior by 25% compared to the already appreciated VG10) for the central plate and the 420J2 (55 HRC) for the two side plates, in order to have a high cutting capacity, but at the the same time a remarkable resilience and resistance to oxidation.
A First Production Run of 30 pieces has been made.
SHRAPNEL OG is a truly versatile “back up” knife with marked combat qualities. Its leaf-shaped blade is flat ground at a characteristically low angle to a wide, extraordinarily sharp edge. The included hard sheath can be worn vertically, horizontally or obliquely (at a 45° angle). Tthe SHRAPNEL OG hilt design does not include a guard.
Use: tactical , sports , hiking , collection
Blade: Full , Japanese- rolled stainless steel ( San Mai) with sharp CoS to 61,7HRC in cryogenic tempering
Handle: Forprene
Blade length: 90mm.
Blade Thickness: 6.5 mm.
Overall length: 210mm.
Balancing: back to 0.5cm . by guard branch
Weight: 214g.
Sheath: ABS with Tek - Lok multi attack
Notes: cardboard box with Extremaratio logos and certificate
Clad Metal
It is a composite metal partly or entirely diffusion bonded together of different kinds of metals.
Metal composition shows higher performance which respective materials alone do not possess and the performance complements opposite characteristics of each material, that is "compound characteristics"Clad Effect on Cutleries
Toughness
Like Japanese swords, clad metal is hard to break or bend, thanks to the toughness as the hard steel part is clad with soft steels.
Easy to work on
Cladded structure is easy to apply on such works as forging, grinding, sharpening or polishing to make a sharp blade.
Improved corrosion resistance
Proper material combination generates electrical potential difference and it enhances the corrosion resistance on blade edge.
Better and long lasting sharpness
Steel after forging pressure makes the microscopic structure denser and improves the sharpness and ensures long lasting performance.
Resource saving
As high class steel is used only for necessary part, it is perfectly cost effective..
Easy distortion correction
As the steel is bonded with soft steel materials, its blade is hard to break and the distortion correction is easy.
Easy drilling and welding after heat treatment
Though the steel gets harder after heat treatment, the soft steel never loses its softness, enabling the material to be drilled or welded.
Design improvement
Laminated patterns or Damascus patterns appear from basis materials which are bonded with different kinds of metals.ERCC-SH -
ExtremaRatio - Shrapnel OG Full Handle - Black - knife
Intended use: Tactical
Type of production: Industrial
Production Country: Italy
Blade: N690Co 58HRC stainless steel
Blade treatment: burnishing MIL-C-13924
Handle: Forprene
Blade length: 110mm.
Blade thickness: 6.3mm.
Overall length: 240mm.
Weight: 241g.
Sheath: ABS, with Tek-Lok type of coupling system
Packaging: cardboard box with Extrema Ratio logos
Notes: long-handled version of the model Shrapnel OG12553 -
ExtremaRatio - Psycho 19cm. - Chef's knife
TACTICAL KNIVES MEET THE KITCHEN!
Extrema Ratio is delighted to apply the strict military standards to a range of professional kitchen knives.
The steel blade is the proven BOHLER N690, a steel enriched with chrome, vanadium, molybdenum and cobalt, hardened to the hardness of 58HRC. The handle is made of Forprene, an elastomer that is in the "NATO standard" for resistance to extreme conditions, and is completely removable from the blade; this makes possible a thorough cleaning and maintenance of the knife.
Each knife comes with its own sheath, also of military origin, which does not take into account the rules of hygiene but ensures safe transport dell'affilatissima blade and protection from shocks that could reduce efficiency. We recommend to use it only for the transport and in the event of long periods of inactivity.
Use: meat / vegetables
Type of production: Industrial
Production Lama: Italy
Blade: stainless steel hardened 58HRC N690Co
Treatment Lama: -
Handle: Forprene
Blade length: 199mm.
Blade thickness: 4mm.
Overall length: 331mm.
Weight: 280g.
Sheath: black leather
Packaging: Cardboard box with logos Extrema Ratio
Note: Can also be used as a knife or sports collectibles12326 -
ExtremaRatio - Psycho Desert Camo 15cm. - Chef's knife
TACTICAL KNIVES MEET THE KITCHEN!Extrema Ratio is delighted to apply the strict military standards to a range of professional kitchen knives.
The steel blade is the proven BOHLER N690, a steel enriched with chrome, vanadium, molybdenum and cobalt, hardened to the hardness of 58HRC. The handle is made of Forprene, an elastomer that is in the "NATO standard" for resistance to extreme conditions, and is completely removable from the blade; this makes possible a thorough cleaning and maintenance of the knife.
Each knife comes with its own sheath, also of military origin, which does not take into account the rules of hygiene but ensures safe transport dell'affilatissima blade and protection from shocks that could reduce efficiency. We recommend to use it only for the transport and in the event of long periods of inactivity.
Use: meat / vegetables
Type of production: Industrial
Production Lama: Italy
Blade: stainless steel hardened 58HRC N690Co
Treatment Lama: Laser Desert Camo
Handle: Forprene
Blade length: 153mm.
Blade thickness: 4mm.
Overall length: 287mm.
Weight: 259g.
Sheath: Cordura, compatible M.O.L.L.E.
Packaging: Cardboard box with logos Extrema Ratio
Note: Can also be used as a knife or sports collectibles12325 -
ExtremaRatio - Psycho Desert Warfare 19cm. - Chef's knife
TACTICAL KNIVES MEET THE KITCHEN!Extrema Ratio is delighted to apply the strict military standards to a range of professional kitchen knives.
The steel blade is the proven BOHLER N690, a steel enriched with chrome, vanadium, molybdenum and cobalt, hardened to the hardness of 58HRC. The handle is made of Forprene, an elastomer that is in the "NATO standard" for resistance to extreme conditions, and is completely removable from the blade; this makes possible a thorough cleaning and maintenance of the knife.
Each knife comes with its own sheath, also of military origin, which does not take into account the rules of hygiene but ensures safe transport dell'affilatissima blade and protection from shocks that could reduce efficiency. We recommend to use it only for the transport and in the event of long periods of inactivity.
Use: meat / vegetables
Type of production: Industrial
Production Lama: Italy
Blade: stainless steel hardened 58HRC N690Co
Treatment Lama: Laser Desert Camo
Handle: Forprene
Blade length: 199mm.
Blade thickness: 4mm.
Overall length: 331mm.
Weight: 280g.
Sheath: Cordura, compatible M.O.L.L.E.
Packaging: Cardboard box with logos Extrema Ratio
Note: Can also be used as a knife or sports collectibles12322 -
ExtremaRatio - Psycho 15cm. - Chef's knife
TACTICAL KNIVES MEET THE KITCHEN!Extrema Ratio is delighted to apply the strict military standards to a range of professional kitchen knives.
The steel blade is the proven BOHLER N690, a steel enriched with chrome, vanadium, molybdenum and cobalt, hardened to the hardness of 58HRC. The handle is made of Forprene, an elastomer that is in the "NATO standard" for resistance to extreme conditions, and is completely removable from the blade; this makes possible a thorough cleaning and maintenance of the knife.
Each knife comes with its own sheath, also of military origin, which does not take into account the rules of hygiene but ensures safe transport dell'affilatissima blade and protection from shocks that could reduce efficiency. We recommend to use it only for the transport and in the event of long periods of inactivity.
Use: meat / vegetables
Type of production: Industrial
Production Lama: Italy
Blade: stainless steel hardened 58HRC N690Co
Treatment Lama: Glazing
Handle: Forprene
Blade length: 153mm.
Blade thickness: 4mm.
Overall length: 287mm.
Weight: 259g.
Sheath: black leather
Packaging: Cardboard box with logos Extrema Ratio
Note: Can also be used as a knife or sports collectibles12321 -
ExtremaRatio - Pugio Testudo Filo Singolo - knife
Il nome è quello della corta ed appuntita daga romana, ma la forma dell,impugnatura a osso di seppia rastremato sui lati ricorda quella dei lunghi pugnali caucasici.
Daghetta da stivale, un back up da difesa, ottima scelta per il porto dissimulato. La lama arrotata a rasoio e l'assenza di guardie elimina la possibilità di impigliamenti nelle tecniche di CQC. Accompagnato da fodero rigido ad innesto automatico con belt-lock.Destinazione d'uso: Tattico / CQC
Tipo di produzione: Industriale
Paese di produzione: Italia
Lama: in acciaio inox N690Co 58HRC
Trattamento lama: Brunitura Mil-C-13924
Impugnatura: Forprene
Lunghezza lama: 110mm.
Spessore lama: 6.5mm.
Lunghezza totale: 225mm.
Peso: 190g.
Fodero: in ABS, rigido, con aggancio tipo Tek-Lok
Confezione: Scatola di cartone con loghi Extrema Ratio
Note: Versione a filo singolo (e pertanto di libera vendita e detenzione) della daga PugioER-PUGIO -
ExtremaRatio - Shrapnel OG Desert Warfare - knife
Extrema Ratio Shrapnel Desert Warfare
Il primo coltello Extrema Ratio che, pur avendo una lunghezza totale di soli 21 centimetri, mantiene inalterate tutte le caratteristiche tecnico/tattiche dei precedenti modelli.Destinazione d'uso: Tattico/Sportivo
Tipo di produzione: Industriale
Paese di produzione: Italia
Lama: in acciaio inox N690Co
Finitura: brunitura Testudo
Impugnatura: Forprene
Lunghezza lama: 110mm.
Spessore lama: 6.3mm.
Lunghezza totale: 210mm.
Bilanciatura: arretrata
Peso: 200g.
Fodero: in ABS con aggancio Tek-Lok con sistema automatico di ritenzione del coltello.
Confezione: Scatola di cartone con loghi Extrema Ratio e certificati del produttoreER-SHR-DW -
ExtremaRatio - 39-09 Ordinanza COFS Special Edition - coltello
Il 39-09 è disponibile anche in edizione speciale numerata ma non limitata, coltello satinato con impugnatura in legno, loghi e motto C.O.F.S., fodero da parata e scatola espositore in legno laccato nero.
Destinazione d'uso: Collezione
Tipo di produzione: Industriale
Produzione Lama: Italia
Lama: In acciaio inox N690Co 58HRC
Manicatura: legno
Lunghezza lama: 195mm.
Spessore lama: 6.3mm.
Lunghezza totale: 315mm.
Bilanciatura: sul ramo di guardia
Peso: 342g.
Foderi:fodero da parata in cordura e abs
Confezione: elegante scatola in legno Extrema Ratio
Questo progetto, patrocinato dal COFS (Comando Operativo Forze Speciali) nella persona del Gen.Bertolini, era gia stato suggerito da alcuni collezionisti di armi bianche d'epoca.
Il restyling del famoso "Pugnale da paracadutista assaltatore mod.1939", un importante pezzo di storia militare italiana.
Il coltello, pur mutuando la linea, la struttura e le proporzioni dell'originale, è stato irrobustito, arricchito di modifiche funzionali e realizzato con materiali a specifiche militari moderne.
Inaspettatamente, il risultato di queste poche modifiche è un pugnale estremamente funzionale ed efficace, assolutamente competitivo con i migliori coltelli militari contemporanei.
Il fodero è rigido da caviglia, alla maniera tipica in cui viene portata la baionetta dai paracadutisti italiani.
E' incluso il fodero da cerimonia per cintura, inclinato a 45° come l'originale.4255COL -
ExtremaRatio - 39-09 - Operational Command Special Forces COFS Combat - knife
The design of this military knife, sponsored by COFS (Special Forces Operative Command) in the person of General Bertolini, had already been suggested by some collectors of white weapons of the time. The restyling of the famous "paratrooper assault dagger mod. 1939 ", constitutes an important piece of Italian military history.
The knife, while borrowing the line, the structure and the proportions from the original, has been strengthened, enriched with functional modifications and made with materials with modern military specifications. The result of these few modifications is an extremely functional and effective dagger. The sheath is ankle-shaped to be worn as Italian paratroopers usually wear a bayonet.
The 39-09 COMBAT version is the compact version with 160mm blade and side sheath.
Intended use: Tactical
Type of production: Industrial
Country of production: Italy
Blade: in N690Co 58HRC stainless steel
Blade treatment: MilSpec MIL-C-13924
Handle: Forprene
Blade length: 160mm.
Blade thickness: 6.3mm.
Length closed: -
Total length: 284mm.
Thick when closed: -
Balancing: -
Weight: 305g.
Sheath: Nylon
Packaging: Cardboard box with ExtremaRatio logos
Note: -ER-39C-BK