Year 2024

If you're looking for a reliable companion for your outdoor adventures, the ONTOS II fixed blade knife is the choice for you. Perfect for those who enjoy camping, hiking, and hiking, this knife is designed to offer the perfect balance of light weight, durability, and exceptional performance. Its name, inspired by the Greek word “ontos,” meaning “the essence,” embodies the perfect blend of strength and versatility. With a forprene handle designed to provide a secure and comfortable grip, ONTOS II allows you to work with precision even in the most difficult conditions, offering total control even when the weather is inclement.

The full flat blade is designed for a precise, deep cut, ensuring high performance and durability. Its well-balanced construction allows you to tackle any task, whether it's cutting wood, thin branches, paracord or ropes. ONTOS II will never let you down, offering reliability and consistent performance in any situation.

The ONTOS II S600 Black is the ideal choice for those seeking exceptional performance and unparalleled wear resistance. With its vibrant green-colored handle, it stands out not only for its aesthetics, but also for the quality of the materials used. Made of Böhler S600 steel, a top-grade material used in the production of metalworking tools, this tool is cryogenically treated to ensure an extraordinary hardness of 64 HRC. The Teflon-based “EXP DARK” coating, developed by Extrema Ratio, further enhances its durability and performance. Complemented by a green thigh scabbard with M.O.L.L.E. system, the ONTOS II S600 Black is ready to be easily integrated into your gear, ensuring practicality and durability in any situation.

Intended Use: Heavy Utility / Hiking
Production type: Industrial
Country of manufacture: Italy
Blade: S600 steel at 64HRC
Surface treatment: Exp Dark
Handle: Forprene
Blade length: 167mm.
Blade thickness: 6mm.
Total length: 299mm.
Balance: advanced
Weight: 344g.
Sheath: nylon, MOLLE compatible
Packaging: cardboard box with Extrema Ratio logos
Notes: blade made of high carbon steel, always keep well cleaned and oiled during storage to prevent rust and oxidation

If you're looking for a reliable companion for your outdoor adventures, the ONTOS II fixed blade knife is the choice for you. Perfect for those who enjoy camping, hiking, and trekking, this knife is designed to offer the perfect balance of light weight, durability, and exceptional performance. Its name, inspired by the Greek word “ontos,” meaning “the essence,” embodies the perfect blend of strength and versatility. With a forprene handle designed to provide a secure and comfortable grip, ONTOS II allows you to work with precision in even the most difficult conditions, offering total control even when the weather is inclement.

The full flat blade is designed for a precise, deep cut, ensuring high performance and durability. Its well-balanced construction allows you to tackle any task, whether it's cutting wood, thin branches, paracord or ropes. ONTOS II will never let you down, offering reliability and consistent performance in any situation.

The ONTOS II Expeditions version is designed for those who demand the ultimate in performance and reliability. The knife features a desert-colored handle and is made of Böhler N690 steel, treated to 58 HRC with a stone-washed finish and MIL-C-13924 burnishing to ensure optimal strength, long edge life and protection against oxidation. It comes with a desert Cordura scabbard with MOLLE system, which includes a mini pouch with a flammable paracord lanyard for emergencies and a Firesteel for lighting fires, so you're always ready even in the most critical situations.

With ONTOS II, every adventure will be supported by a knife that combines superior performance, functionality and durability, making you feel ready to face any challenge.

Intended Use: Heavy Utility / Hiking
Production Type: Industrial
Country of manufacture: Italy
Blade: N690Co 58HRC stainless steel
Surface Treatment: Burnishing MIL-C-13924 Stone Washed
Handle: Forprene
Blade Length: 167mm.
Blade thickness: 6mm.
Total length: 299mm.
Balance: advanced
Weight: 311g.
Sheath: nylon, MOLLE compatible, with detachable front sheath
Packaging: cardboard box with Extrema Ratio logos.
Notes: includes a firesteel (tinder) and a firecord (flammable paracord thread) for lighting emergency fires

Born out of the growing demand of demanding professionals, Extrema Ratio presents ONTOS - a field knife designed to meet any challenge. The name, derived from the Greek “the thing,” represents the perfect synthesis of toughness, versatility and reliability. Compact yet extremely durable, ONTOS is the ideal companion in any situation, thanks to its partially serrated blade that always ensures a sharp, ready-to-use cut.

Its nylon thigh scabbard, equipped with the MOLLE system, is designed to stay firmly anchored even in the harshest conditions, when the soldier is forced to give up his primary tactical equipment. And for those seeking an extra level of preparedness, a survival kit, purchased separately, is available to attach directly to the knife sheath.

Intended Use: Heavy Utility
Production Type: Industrial
Country of manufacture: Italy
Blade: N690Co 58HRC stainless steel
Surface treatment: Burnishing MIL-C-13924
Handle: Forprene
Blade length: 168mm.
Blade thickness: 6.3mm.
Total length: 299mm.
Balance: advanced
Weight: 411g.
Sheath: nylon, MOLLE compatible
Packaging: cardboard box with Extrema Ratio logos
Notes: -

Numen: The Force at Your Side
Discover the Numen survival knife, inspired by the ancient Roman concept of “numen,” an invisible force that guides and protects in decisive moments. Not just a tool, but a powerful and discreet ally, ready to support you in the most extreme situations.

Designed in collaboration with Daniele Dal Canto, an AIGS (Italian Association of Survival Guides) guide, Numen is the perfect synthesis of sturdiness, versatility and functionality. Made to face the toughest challenges, this knife will become your silent but determined companion, always ready to respond to your needs.

Unbeatable Ruggedness and Performance
The full tang construction ensures absolute strength and perfect balance, making Numen ideal for a wide range of tasks, including felling, debarking, batoning, chopping and woodworking. The blade, designed for heavy-duty work, is also precise enough for detailed cuts, maintaining outstanding strength even after prolonged use.

Ergonomic Handle for Maximum Safety
The ergonomic G10 handle ensures a secure grip in all conditions, even with wet hands or work gloves. Thanks to its comfortable, non-slip shape, you can use Numen with ease and safety in any situation, from hiking to emergencies.

Cordura sheath for Maximum Practicality
Each Numen knife comes with a black Cordura sheath, equipped with a M.O.L.L.E.-compatible attachment system, adaptable for both left- and right-handed people. Practical, safe and easy to carry with you at all times.

Intended Use: Hiking/Survival

Type of production: Industrial
Country of manufacture: Italy
Blade: full tang, S600 carbon steel at 64HRC
Blade treatment: Black Exp Dark
Handle: G10
Blade length: 210mm.
Blade thickness: 6mm.
Total length: 382mm.
Weight: 632g.
Sheath: cordura, belt-mounted, ambidextrous, M.O.L.L.E. compatible.
Packaging: cardboard box with Extrema Ratio logos

Numen: The Force at Your Side
Discover the Numen survival knife, inspired by the ancient Roman concept of “numen,” an invisible force that guides and protects in decisive moments. Not just a tool, but a powerful and discreet ally, ready to support you in the most extreme situations.

Designed in collaboration with Daniele Dal Canto, an AIGS (Italian Association of Survival Guides) guide, Numen is the perfect synthesis of sturdiness, versatility and functionality. Made to face the toughest challenges, this knife will become your silent but determined companion, always ready to respond to your needs.

Unbeatable Ruggedness and Performance
The full tang construction ensures absolute strength and perfect balance, making Numen ideal for a wide range of tasks, including felling, debarking, batoning, chopping and woodworking. The blade, designed for heavy-duty work, is also precise enough for detailed cuts, maintaining outstanding strength even after prolonged use.

Ergonomic Handle for Maximum Safety
The ergonomic G10 handle ensures a secure grip in all conditions, even with wet hands or work gloves. Thanks to its comfortable, non-slip shape, you can use Numen with ease and safety in any situation, from hiking to emergencies.

Cordura sheath for Maximum Practicality
Each Numen knife comes with a black Cordura sheath, equipped with a M.O.L.L.E.-compatible attachment system, adaptable for both left- and right-handed people. Practical, safe and easy to carry with you at all times.

Intended Use: Hiking/Survival

Type of production: Industrial
Country of manufacture: Italy
Blade: full tang, 58HRC Bohler N690Co stainless steel
Blade treatment: Satin finish
Handle: G10
Blade length: 210mm.
Blade thickness: 6mm.
Total length: 382mm.
Weight: 632g.
Sheath: cordura, belt-mounted, ambidextrous, M.O.L.L.E. compatible.
Packaging: cardboard box with Extrema Ratio logos.

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: -

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: -

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: -

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 / CQC

Type 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 Cossano

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 / CQC

Type 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 Cossano

With the Recon M1, Cold Steel explores a new addition to its existing lines, just as the name suggests. And this new addition is something knife enthusiasts are excited about: the use of the famous MagnaCut steel in the blades of Cold Steel products, starting with the brand new Recon M1.

Made in Italy, the Recon M1 offers unparalleled sharpness, strength and durability thanks to its MagnaCut steel construction. Known for its strength and extreme resistance to wear and corrosion, the over 10cm. MagnaCut clip-point blade offers outstanding edge retention ensuring the ability to meet any challenge, and thanks to its microstructure the blade is also much easier to sharpen than other steels.

Intended Use: Sporting

Type of production: Industrial
Country of manufacture: Italy
Blade: CPM-MagnaCut steel
Blade treatment: Black PVD
Handle: G10
Blade length: 10.16mm.
Blade thickness: 3mm.
Length closed: 136mm.
Total length: 238mm.
Thickness when closed: 13mm.
Weight: 147g.
Opening: pivot
Closure: Tri-AD Lock
Clip: stainless steel with PVD finish, removable and reversible, tip-up
Packaging: cardboard box with Cold Steel logos
Notes: -

Versa combines innovative design with unparalleled functionality. The name “Versa” perfectly embodies the characteristics of this knife: its versatility makes it suitable for a variety of situations, showing its adaptability both in urban environments as an EDC (Every Day Carry) knife and in more adventurous settings such as outdoor, survival, bushcraft, hunting and even tactical scenarios. It is also ideal as a backup knife. This knife is ready to meet every need by combining style and practicality in one tool. Versa comes in two distinct models: Versa Satin, perfect for everyday use and Versa Expeditions, more suitable in outdoor, survival and bushcraft settings.

Intended Use: Neck Knife / Hiking / Utility

Type of production: industrial
Country of manufacture: Italy
Blade: full tang, stainless steel N690Co at 58HRC
Blade finish: burnishing MIL-C-13924 with Dark Stone finish
Handle: monolithic, pierced, stainless steel N690Co at 58HRC
Blade length: 80mm.
Blade thickness: 6.3mm.
Total length: 180mm.
Weight: 110g.
Sheath: made of Kydex, for neck
Packaging: cardboard box with Extrema Ratio logos
Notes: Firesteel and kydex sheath included in package

This folding knife, created with renowned designer Andrew Demko, boasts a 12.7 cm blade made of S35VN steel, which offers exceptional edge retention and corrosion resistance.

The blade has a black stonewashed finish for added durability and elegance. The dark green, ergonomic G10 handle ensures a firm grip even in adverse conditions. Equipped with Cold Steel's Tri-Ad locking system, it ensures the blade remains secure during use.

With an overall length of 30.8 cm, a thickness of 4.8 mm, and a weight of 351 grams, the 5 Max is a sturdy and versatile knife, suitable for a wide range of tasks, from cutting through stiff materials to precision work. Ideal for tackling the toughest outdoor challenges, it perfectly combines style and substance.

Intended Use: Sporty / Hard Utility

Production Type: Industrial
Country of Production: Taiwan
Blade: Stainless steel CPM-S35VN
Blade Treatment: Black Stonewashed
Handle: G10 with internal stainless steel folders
Blade length: 130mm.
Blade thickness: 4.8mm.
Total length: 308mm.
Weight: 351g.
Closure: Tri-Ad Lock
Clip: Reversible and removable, stainless steel
Packaging: cardboard box with Cold Steel logos
Notes: Design by Andrew Demko

FAT BOY is the strongest fixed-blade knife ever produced by Extrema Ratio. This is the first knife produced from N690Co steel (58HRC) with a thickness of as much as 8.6mm. The total weight of this model is 1kg.

The blade, which features a full flat rounding, has a special tip structure that not only combines the ability to penetrate with the possibility of use as a wedge, but at the same time allows the main cutting edge to be safeguarded. Its shape and width also enable it to dig small holes in the ground in emergency situations.

The back, which is thick and flat at the end, gives the tool more mass and beating surface useful for hammering and planting stakes. Fat Boy has a handle composed of 2 black-colored G10 material grips made with Extrema Ratio's new original design. Removable and replaceable, they allow for inspections and checks underneath the handle and allow for paracord mounting.

Intended Use: Heavy Duty

Production type: Industrial
Country of manufacture: Italy
Blade: full tang, made of Bohler N690Co stainless steel at 58HRC
Blade treatment: Dark Stonewashed
Handle: G10
Blade length: 210mm.
Blade thickness: 8.6mm.
Total length: 350mm.
Weight: 1008g.
Sheath: cordura, belt-mounted, MOLLE compatible
Packaging: cardboard box with Extrema Ratio logos.

FAT BOY is the strongest fixed blade knife Extrema Ratio has ever produced. It is the first knife made of N690Co steel (58HRC) with a thickness of 8.6 mm. The total weight of this model is 1 kg.

The blade, characterized by a completely flat edge, has a special tip structure that not only combines the ability to penetrate with the possibility of using it as a wedge, but also protects the main cutting edge. Thanks to its shape and width, it can also dig small holes in the ground in emergency situations.

The thick spine, flat at the end, gives the tool greater mass and a striking surface that is useful for driving stakes and hammers. Fat Boy has a handle made of 2 black G10 handle scales in the new original Extrema Ratio design. They are removable and interchangeable and allow inspections and checks under the handle as well as the attachment of paracord.

Intended use: Heavy Duty

Type of production: Industrial
Country of manufacture: Italy
Blade: Full tang, 58HRC Bohler N690Co stainless steel
Blade treatment: Dark stonewashed
Handle: G10
Length of the blade: 210mm.
Thickness of the blade: 8.6 mm.
Total length: 350 mm.
Weight: 1008g.
Sheath: Cordura, belt, MOLLE compatible
Packaging: Cardboard box with Extrema Ratio logos

The blade of the BF2 CD M390 TACTICAL GREY, featuring a flat rounding and a particularly thick and durable drop tip, is coated with a Diamond-Like Carbon (DLC) surface treatment. This coating makes the blade extremely resistant to abrasion and chemical attack, ensuring optimal performance over time.

The steel used for the blade is Böhler M390, heat-treated to 61 HRC. Using a powder metallurgical manufacturing process, this steel offers high cutting efficiency, wear and oxidation resistance, making it an excellent choice for those seeking quality and durability.

The handle, in the new "Tactical Grey" coloring, is composed of 2 full gauntlets with characteristic lowered planes to engage the opening "pins" without them protruding from the profile of the closed knife. This design ensures a firm and comfortable grip, ensuring safe and convenient use.

Intended Use: Tactical/Military

Type of production: industrial
Country of Manufacture: Italy
Blade: stainless steel M390 at 61HRC
Blade finish: DLC (Diamond Like Carbon)
Handle: Anticorodal
Blade length: 90mm.
Blade thickness: 3mm.
Length closed: 124mm.
Total length: 210mm.
Weight: 140g.
Closure: Liner Lock
Clip: reversible and removable, burnished stainless steel
Notes: manual safety lock when knife is open

T4000S is a reworking of the Japanese Wakizashi short sword that the Samurai carried at all times in contact with the body. It is a timeless tactical tool that does not follow any fashion but faithfully respects the Extrema Ratio philosophy aimed at fulfilling all functional requirements.

This model continues Extrema Ratio's purest Tanto series designed especially for lovers of the Japanese blade profile, who do not want to give up typical tactical accessories such as textile sheath and special polymer handle. The blade is made of Bohler N690 steel, heat-treated to a hardness of 58 HRC.

The handle, in black coloring, is made of Forprene, an elastomer whose exceptional resistance to extreme conditions makes it part of the "NATO standard." The black-colored Cordura scabbard is and equipped with a MOLLE system that allows it to be carried on tactical vests and general belts and ensures that the razor-sharp blade can be carried in total safety by protecting it from shocks that could reduce its efficiency.

Intended Use: Tactical

Type of production: Industrial
Country of manufacture: Italy
Blade: Bohler N690Co stainless steel at 58HRC
Blade treatment: satin finish
Handle: Forprene
Blade length: 174mm.
Blade thickness: 4mm.
Total length: 304mm.
Weight: 264g.
Sheath: Nylon
Packaging: Cardboard box with Extrema Ratio logos.

The product is an elaboration of the Japanese Wakizashi sword, a typical blade 30 to 60 centimeters long, which the Samurai carried at all times in contact with the body, where the Katana was carried exclusively in battle. The blade manufactured from Boehler N690 steel is hardened to 58HRC while the handle is made of forprene, an elastomer that falls under the "NATO standard" for resistance to extreme conditions. The Waki comes with a cordura, military-derived scabbard that ensures safe carrying of the razor-sharp blade and its protection from shocks that could reduce its efficiency. The scabbard is also equipped with the MOLLE system that allows it to be carried on tactical vests and general belts.

Intended Use: Tactical/Machete

Type of production: Industrial
Country of manufacture: Italy
Blade: stainless steel N690Co at 58HRC
Blade Treatment: Satin finish
Handle: Forprene
Blade Length: 297mm.
Blade thickness: 6.5mm. tapering to 4mm from the handle.
Total length: 456mm.
Weight: 384g.
Sheath: cordura, compatible with M.O.L.L.E. systems.
Packaging: cardboard box with Extrema Ratio logos
Notes: -

Tuscan is a multi-role knife dedicated to Tuscany, a region known for its landscapes, cities of art and strategic military relevance. This knife is designed to adapt to different operational contexts, from tactical military theaters to urban operations, due to its versatility and maneuverability. The full tang blade made of BOHLER N690 steel (58 HRC) is lightened and balanced to facilitate chopping and batoning operations, while the sharpness remains uniform along the entire length. The ergonomic G10 handle allows comfortable use with both standard and reverse grip, with or without gloves. Ambidextrous Cordura sheath with M.O.L.L.E system and thigh strap allows easy carrying on tactical vests and belts. Tuscan is ideal for use in outdoor, survival and bushcraft environments, confirming its versatility in multiple operational situations.

Intended Use: Tactical/Military

Production type: Industrial
Country of production: Italy
Blade: full tang, in Bohler N690Co stainless steel at 58HRC
Blade treatment: Burnishing MIL-C-13924
Handle: G10
Blade length: 167mm.
Blade thickness: 6mm.
Total length: 306mm.
Weight: 437.5g.
Sheath: cordura, belt-mounted, MOLLE compatible
Packaging: cardboard box with Extrema Ratio logos.

Tuscan is a multi-role knife dedicated to Tuscany, a region known for its landscapes, cities of art and strategic military relevance. This knife is designed to adapt to different operational contexts, from tactical military theaters to urban operations, due to its versatility and maneuverability. The full tang blade made of BOHLER N690 steel (58 HRC) is lightened and balanced to facilitate chopping and batoning operations, while the sharpness remains uniform along the entire length. The ergonomic G10 handle allows comfortable use with both standard and reverse grip, with or without gloves. Ambidextrous Cordura sheath with M.O.L.L.E system and thigh strap allows easy carrying on tactical vests and belts. Tuscan is ideal for use in outdoor, survival and bushcraft environments, confirming its versatility in multiple operational situations.

Intended Use: Tactical/Military

Production type: Industrial
Country of production: Italy
Blade: full tang, in Bohler N690Co stainless steel at 58HRC
Blade treatment: Satin finish
Handle: G10
Blade length: 167mm.
Blade thickness: 6mm.
Total length: 306mm.
Weight: 437.5g.
Sheath: cordura, belt-mounted, MOLLE compatible
Packaging: cardboard box with Extrema Ratio logos.

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: -

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 open

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 open

TACTICAL CUTLERY ENTERS THE KITCHEN!
Silver Talon is the knife designed by Extrema Ratio to celebrate the famous "Fiorentina" steak. This knife made of machined steel from solid, thanks to its integral structure, does not allow deposits of organic material.

The special claw shape of the blade allows it to cut dishes without the blade ever touching the plate with the edge but rather with the tip. Silver Talon, when used correctly, will retain its original sharpness for a very long time. For those who love precision tools even on the table.

Intended use: steak knife/table knife

Type of production: Industrial
Country of manufacture: Italy
Blade: stainless steel N690Co hardened to 58HRC
Blade Finish: Satin
Handle: /
Blade Length: 86mm.
Blade thickness: 2.5mm. on the blade / 6.5mm on the handle
Total length: 193m.
Weight: 85g.
Sheath: -
Packaging: Cardboard box with Extrema Ratio logos.
Notes: -

Intended use: tactical / sports

Type of production: Industrial
Country of production: Taiwan
Blade: SK-5 carbon steel
Blade treatment: Black Tuff-Ex painting
Handle: Kray-Ex (Kraton)
Blade length: 155mm.
Blade thickness: 5mm.
Total length: 275mm.
Balancing: on the guard branch
Weight: 230g.
Sheath: Secure-Ex in ABS
Packaging: cardboard box with Cold Steel logos

COL MOSCHIN Paper Knife is a taglicarte whose outline is faithfully derived from one of the most iconic knives of our production, the Col Moschin model, adopted by the 9th Parachute Assault Regiment "Col Moschin."

This instrument is part of a larger collection.

COL MOSCHIN Paper Knife is not only a decorative and evocative accessory, but it also has all the tactical features that are part of Extrema Ratio's DNA.

It features nylon grips and a sturdy steel blade that echoes the same shape as its big brother.

COL MOSCHIN Paper Knife is very practical and convenient for the office or home office and is also perfectly suited as an original gift idea.

Intended Use: Collection/Tactical/Military

Country of manufacture: Italy
Blade: stainless steel NOT SHARPENED
Blade Finish: Burnishing MIL-C-13924
Handle: nylon
Blade length: 100mm.
Blade thickness: 1.5mm.
Total length: 180mm.
Weight: 45g.
Sheath: -
Packaging: cardboard box with Extrema Ratio logos.
Notes: -

Glauca G1, an evolution of the Glauca model, has specific features designed especially for the renowned GSG9 department, a special unit of the Bundespolizei, which has officially adopted it. The handle, made of anodized anticorodal aluminum with tactical mud coloring, is equipped with a tungsten carbide rear glass breaker.

On the back are a stainless steel nail stripper that can be locked in the open position and a resealable rescue tool that allows the operator to make a quick emergency cut to free a possible casualty from their clothing. This second tool is also great for use as a belt cutter.

The blade locking system is the proven LINER-LOCK to which is added a second safety mechanism to be operated manually.

Production type: Industrial

Country of manufacture: Italy
Blade: N690Co stainless steel
Blade Treatment: Burnishing MIL-C-13924
Handle: Anticorodal
Blade Length: 112mm.
Blade thickness: 4mm.
Length closed: 158mm.
Total length: 270mm.
Thickness when closed: 17mm.
Weight: 225g.
Closure: Liner Lock with additional side safety
Clip: Removable, burnished stainless steel
Packaging: Cardboard box with Extrema Ratio logos
Notes: Rear window breaker - Stainless steel nail striker - Reclosable cutting rescue tool 

The kiridashi is a traditional Japanese cutting tool that has ancient roots in culture and tradition; Extrema Ratio has revised according to its style this knife belonging to Japanese tradition giving it a more tactical look than the original. While retaining the characteristic chisel rounding, KIRI has a special tip designed to achieve a high penetration efficiency. 

Extrema Ratio KIRI is available in Dark Stone and Satin finishes, both made of Böhler N690 steel hardened to 58HRC. The handle consists of two black-colored anodized anticorodal aluminum grips. The preshaped Kydex sheath is equipped with metal eyelets that allow paracord lanyard to be attached to MOLLE system platforms as well.

Intended use: Neck knife / Utility

Type of production: industrial
Country of production: Italy
Blade: stainless steel N690Co 58/60HRC
Blade treatment: Dark Stone Washed
Handle: stainless steel N690Co 58/60HRC
Blade length: 60mm.
Blade thickness: 5mm.
Total length: 190mm.
Weight: 112g.
Sheath: in Kydex, for neck
Packaging: cardboard box with Extrema Ratio logos
Notes: possibility of using the scabbard with Ulti-Clip, M.O.L.L.E. or Tek-Lok systems (may be purchased separately)

The kiridashi is a traditional Japanese cutting tool that has ancient roots in culture and tradition; Extrema Ratio has revised according to its style this knife belonging to Japanese tradition giving it a more tactical look than the original. While maintaining the characteristic chisel rounding, KIRI has a special tip designed to achieve a high penetration efficiency. 

Extrema Ratio KIRI is available in Dark Stone and Satin finishes, both made of Böhler N690 steel hardened to 58HRC. The handle consists of two black-colored anodized anticorodal aluminum grips. The preshaped Kydex sheath is equipped with metal eyelets that allow paracord lanyard to be attached to MOLLE system platforms as well.

Intended use: Neck knife / Utility

Type of production: industrial
Country of production: Italy
Blade: stainless steel N690Co 58/60HRC
Blade treatment: satin finish
Handle: stainless steel N690Co 58/60HRC
Blade length: 60mm.
Blade thickness: 5mm.
Total length: 190mm.
Weight: 112g.
Sheath: in Kydex, for neck
Packaging: cardboard box with Extrema Ratio logos
Notes: possibility of using the scabbard with Ulti-Clip, M.O.L.L.E. or Tek-Lok systems (may be purchased separately)

The Ant is the most compact among Extrema Ratio's folding knives. Despite its small size, this model features an extremely sturdy, durable, and reliable structure.

The Ant Rescue, unlike other versions, has a cheek piece in red coloration that allows the operator to more easily locate the knife in case of a fall. This version is equipped with a specific serration that allows cutting ropes and even high-tensile aramid materials. Moreover, this model has a tapered tang that serves as an emergency screwdriver. The Ant Rescue has been developed according to the needs expressed by the "Italian Army Alpine Troops School".

The handle is made of two different elements: the cheek piece crafted from anodized anticorodal aluminum and the hardened steel frame which also serves as the blade lock (Frame Lock System). This mechanism involves a part of the frame bending inward to firmly secure the blade in the open position, enhancing the user's safety during the knife's use.

The tang features a hole for the insertion of a lanyard, and on the right side of the handle, there is a steel clip that allows for concealed carry in the pocket.

The Ant is available in 4 versions with two different types of steel, both provided by Böhler, an Austrian company with which Extrema Ratio has been collaborating for over 20 years, using its highly esteemed materials for the production of its blades.

For the Stone Washed M390 version, Extrema Ratio uses Böhler M390 steel, thermally treated to 61 HRC, which, thanks to a powder metallurgy production process, ensures cutting effectiveness, wear resistance, and oxidation resistance over time.

The blade is sheep foot-shaped and has a small hole on the top part to facilitate opening. Its particular structure, with a straight edge, allows the user to comfortably rest their fingers on the back of the knife and use it with ease.

Type of production: industrial
Blade: in partially serrated stainless steel M390 61HRC
Blade production: Italy
Handle: anodized anticorodal aluminum and steel
Blade length: 70mm.
Blade thickness: 2.2mm.
Closed length: 55mm.
Total length: 127mm.
Balancing: -
Weight: 42g.
Closure: Frame Lock
Clip: removable stainless steel
Sheath: -
Notes:

The Ant is the most compact among Extrema Ratio's folding knives. Despite its small size, this model features an extremely sturdy, durable, and reliable structure.

The handle is made of two different elements: the cheek piece crafted from anodized anticorodal aluminum and the hardened steel frame which also serves as the blade lock (Frame Lock System). This mechanism involves a part of the frame bending inward to firmly secure the blade in the open position, enhancing the user's safety during the knife's use.

The tang features a hole for the insertion of a lanyard, and on the right side of the handle, there is a steel clip that allows for concealed carry in the pocket.

The Ant is available in 4 versions with two different types of steel, both provided by Böhler, an Austrian company with which Extrema Ratio has been collaborating for over 20 years, using its highly esteemed materials for the production of its blades.

For the Stone Washed M390 version, Extrema Ratio uses Böhler M390 steel, thermally treated to 61 HRC, which, thanks to a powder metallurgy production process, ensures cutting effectiveness, wear resistance, and oxidation resistance over time.

The blade is sheep foot-shaped and has a small hole on the top part to facilitate opening. Its particular structure, with a straight edge, allows the user to comfortably rest their fingers on the back of the knife and use it with ease.

Type of production: industrial
Blade: in stainless steel M390 61HRC
Blade production: Italy
Handle: anodized anticorodal aluminum and steel
Blade length: 70mm.
Blade thickness: 2.2mm.
Closed length: 55mm.
Total length: 127mm.
Balancing: -
Weight: 42g.
Closure: Frame Lock
Clip: removable stainless steel
Sheath: -
Notes:

Type: Previously Purchased
Condition: in excellent condition
Available in the market, currently in production
Sharpening: Factory standard
Blade marks: None
Handle marks: None
Box: Present
Sheath: Not applicable
Manuals, Certificates, and Warranties: ER
Checked and Certified by our internal laboratory
Intended use: Tactical/Emergency

Type of production: Industrial
Blade Production: Italy
Blade: N690Co stainless steel, 58HRC
Blade Treatment: Testudo
Handle: Anticorodal
Blade length: 95mm
Blade thickness: 4mm
Closed length: 134mm
Total length: 225mm
Closed thickness: 24mm
Balance: Not applicable
Weight: 162g
Closure: Liner Lock
Clip: Stainless Steel
Sheath: Not applicable
Packaging: black cardboard box with Extrema Ratio logos
Notes: seat belt cutter, glass breaker, screwdriver for optics

Cutting knife designed for special tasks, specifically developed for the 9th Assault Paratrooper Regiment Col Moschin, an elite unit of the Folgore Brigade.

All knives in this series feature straight ergonomic KRATON handles designed to ensure a solid grip and facilitate a quick transition between Sabre Grip and Reverse Grip. A stainless steel Allen screw allows for field disassembly for maintenance and lubrication of the full tang, extending the knife's operational lifespan.

The sheath is suitable for airborne, underwater, and amphibious operations, and can be attached to belts or tactical gear.

Intended Use: Collection/Tactical/Military
Country of Manufacture: Italy
Blade: N690Co stainless steel, 58HRC
Blade Finish: MIL-C-13924 Black Coating
Handle: Removable, made of Kraton
Blade Length: 160mm
Blade Thickness: 6.3mm
Total Length: 290mm
Balance: Rearward, 1 cm behind the lower guard
Weight: 265g
Sheath: Modular tactical thigh or belt sheath, made of Nylon
Packaging: Cardboard box with Extrema Ratio logos
Notes: Developed and used by the 9th Assault Paratrooper Regiment Col Moschin of the Folgore Brigade of the Italian Army