Passion for knives
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ExtremaRatio - Ontos II S600 Black - Exp Dark S600 & Green Forprene - knife
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 oxidationER-ON2-S600 -
ExtremaRatio - Ontos II Expeditions - Stonewashed N690Co & Desert Forprene - knife
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 firesER-ON2-EX -
ExtremaRatio - Ontos Knife - Black N690Co & Forprene - knife
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: -ER-ONB -
ESEE Knives - Expat Cleaver CL1 - Black Oxide 1095 & Black G10 - PRIVATE COLLECTION - Knife
KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Origin: Withdrawn from a private collection, previously purchased.
* Condition: Like new, never used
* Commercially available: Findable.
* 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.
The CL1 Cleaver was born from Expat's extensive international culinary experience, both in the kitchen and in the wilderness. If you're looking for a versatile tool to use in the camp kitchen that can also do double duty as a wood splitter or clean up a camp area, then the Expat Cleaver should be at the top of your wish list..“Expat” is a real person. An instructor, adventurer, world traveler and many other things mixed together. While working in some of the most dangerous areas of South America, Expat contacted ESEE seeking jungle survival training in extreme scenarios. Thus began a close partnership that has now lasted for more than 15 years.
Expat has traveled thousands of miles around the Third World, sometimes with the ESEE team, but always with ESEE products. From armored caravans in Colombia and expeditions to the Himalayas, to earthquakes in El Salvador and hunting in the Balkans, ESEE knives have been a constant companion. He has been a student, translator and instructor for Randall's Adventure Training. During his time abroad, he developed unique insights into tools and adventures and is currently working with ESEE to bring these designs and experiences to others.
What started with a knife cleaver will end up ... well, who knows? That is the whole purpose of the Expat Experience.
Intended Use: Outdoor Utility / Heavy Duty / Field KitchenProduction Type: Industrial
Country of Manufacture: USA
Blade: full tang in 1095 55/57HRC steel
Blade Finish: Stone Washed Black Oxide
Handle: G10
Blade Length: 141mm.
Blade thickness: 4.8mm.
Total length: 295mm.
Weight: 740g.
Sheath: leather blade cover, without belt or carry attachments or hooks
Packaging: cardboard box with ESEE logos.
Notes: previously purchased item, from private collectionESEE-CL1-CP -
ExtremaRatio - Numen - Black Exp Dark S600 & Black G10 - Heavy Duty Knife
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 logosER-NUM-S600 -
ExtremaRatio - Numen - Satin N690Co & Black G10 - Heavy Outdoor Knife
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.ER-NUM-SA -
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 - Fat Boy - Dark Stone N690Co & Black G10 - Knife
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 DutyProduction 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.ER-FATBOY-DS -
ExtremaRatio - Fat Boy - Satin N690Co & Black G10 - Knife
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 DutyType 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 logosER-FATBOY-SA -
ExtremaRatio - BF2CD knife - DLC M390 & Tactical Grey Anticorodal - knife
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 openER-BF2CD-TG -
ExtremaRatio - T4000 S Knife - Satin - knife
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: TacticalType 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.ER-T4S-SAT -
ExtremaRatio - Waki Satin - Tactical Machete Knife.
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: -ER-WA-SAT -
ExtremaRatio - Tuscan - Black N690Co & Green G10 - Knife
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/MilitaryProduction 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.ER-TUS-GB -
ExtremaRatio - Tuscan Knife - Satin N690Co & Black G10 - Knife
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/MilitaryProduction 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.ER-TUS-BS -
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 - Silver Talon - Fiorentina Steak Knife - Steak and Table Knife
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 knifeType 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: -ER-ST -
ExtremaRatio - MF0T Zero Oxide Grey 33pcs. Limited Edition - PRIVATE COLLECTION - knife
Exclusive limited edition series in collaboration with INSTRUCTOR ZERO (Team Zero International Training Security Company), renowned firearms training specialist, risk analyst and strategic consultant working worldwide for both military and law enforcement specialized units and government agencies.
KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Provenance: withdrawn from private collection, previously purchased.
* Condition: New, never used
* Commercially available: Discontinued, limited run of only 33 numbered pieces
* Sharpening: Factory sharpened
* Marks on blade: None
* Marks on handle: None
* Box: Present
* Scabbard: /
* Manuals, Certificates and Warranties: Present
* Checked and Certified by our in-house laboratoryIntended Use: Tactical / Collection
Production type: Industrial
Country of Production: Italy
Blade: Stainless steel N690Co 58HRC
Blade Treatment: Testudo MIL-C-13924
Handle: Anticorodal
Blade Length: 68mm.
Blade thickness: 4mm.
Length closed: 110mm.
Total length: 181mm.
Thickness when closed: 23mm. (15mm without clip)
Weight: 139g.
Closure: Liner Lock with additional safety catch
Clip: Stainless Steel
Packaging: watertight plastic box with Extrema Ratio and Team Zero logos, Warranty Certificate, Velcro Patch, Limited edition made in only 33 piecesER-MF0TBZOG -
ExtremaRatio - Col Moschin Paper Knife - letter opener
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: -ER-COL-PK -
ExtremaRatio - Ant Rescue Red Stone Washed Knife - M390 - Folding Knife
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:ER-ANT-R-M -
ExtremaRatio - Ant Black Stone Washed Knife - M390 - Folding Knife
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:ER-ANT-B-M -
ExtremaRatio - MF1 BC knife - PRIVATE COLLECTION - tactical knife
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/EmergencyType 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 opticsAP-MF1-BC-CP -
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 - RAO C - N690Co & Aluminum Black - folding knife
Thanks to its structure, RAO C is a tool that despite its small size, manages to guarantee the same qualities of robustness and reliability as its big brother while offering better portability and manageability.
The locking mechanism on opening is particularly strong as it is assisted by a safety system that turns it into a true fixed blade. The primary safety on the blade is activated by raising and lowering the locking pin. To provide the user with maximum safety in use, a practical and quick secondary safety has been applied, which can be activated simply by moving the locking pin horizontally.
For the purpose of lightening the steel frames, a template was laser-cut from the profile of the RAO C, which was then used to make a gadget that is delivered with the knife.
Intended use: hiking/tactical
Type of production: industrial
Country of production: Italy
Blade: stainless steel N690Co 58HRC
Blade Finish: Burnishing MIL-C-13924
Handle: anticorodal anodized with hard oxidation
Blade length: 100mm.
Blade thickness: 4mm.
Length closed: 132mm.
Total length: 225mm.
Weight: 239g.
Closure: modified front lock, with push-button aditional safety.
Notes: keychain gadget, with miniature profile of the knifeER-RAOC-BK -
ExtremaRatio - T4000 S Ranger Knife - 100pcs. Limited Edition - knife
T4000 S Ranger Limited Edition is a limited series version of only 100 pieces based on the T4000 model, 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 follows no fashion but faithfully adheres to 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, made of Böhler N690 steel hardened to 58 HRC and burnished to MIL - C- 13924, features Geotech Camo customization, Extrema Ratio's innovative and original camouflage pattern made by laser engraving.
The grip, in HCS coloring, is made of Forprene, an elastomer that is part of the "NATO standard" due to its exceptional resistance to extreme conditions.
The black-colored Cordura sheath is and equipped with MOLLE system that allows its carrying on tactical vests and general belts and guarantees the safe carrying of the razor-sharp blade by protecting it from shocks that could reduce its efficiency.
The T4000 S Ranger Limited Edition comes in an IP67-certified watertight Polypropylene technical case with pressurization valve that is weather, dust and shock resistant. Also inside is a double-grit sharpening plate (ceramic abrasive and synthetic diamond) and a metal plaque with the numbering of the limited series of 100.
Intended Use: Tactical/Collection
Type of production: Industrial
Country of Production: Italy
Blade: Bohler N690Co stainless steel at 58HRC
Blade Finish: Burnishing MIL-C-13924 with Geotech pattern
Handle: Forprene
Blade length: 174mm.
Blade thickness: 4mm.
Total length: 304mm.
Weight: 264g.
Sheath: Nylon
Packaging: Polymer case, diamond and ceramic sharpener, Limited run of only 100 piecesER-T4S-RLE -
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 - Ferrum T Black knife - Tactical Mud - 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-TM -
ExtremaRatio - Ferrum Rescue multi tool - Black - knife
Ferrum Rescue is a tool designed for rescue operations, developed in collaboration with my friend Andrea Micheli, military and law enforcement expert, journalist and shooting instructor. Made with a very compact handle, this rescue tool is equipped with 3 blades, each of which has a specific function:
The first and main blade has a thickness of 3 millimeters and is designed to be used for more demanding purposes and to protect the cutting edge of the other two from premature wear. The teeth allow it to cut larger ropes or textile materials, the remaining smooth part has the classic function of a knife. The second blade is a scalpel, which can be used for extremely precise cuts and for emergency first aid interventions. The third blade, on the back of the first, is the smallest of the 3, it has the function of cutting lines, capable of cutting paracord and aramid material.
The interaction of the main blade with the scalpel allows the operator to make a quick emergency cut to free any injured person from his or her clothing.
The line cutter blade and the scalpel are both interchangeable.
Ferrum Rescue 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. On the back there is also a hard metal glass breaker.
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 operator 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.
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: Satin
Handle: Rough Anticorodal
Blade length: 56mm.
Blade thickness: 3mm.
Closed length: 90mm.
Total length: 170mm. (18mm. INCLUDING SCALPEL BLADE)
Weight: 85g.
Closure: Liner Lock
Clip: Removable and reversible, in stainless steel
Packaging: Cardboard box with Extrema Ratio logos
Note: -ER-FE-RB -
ExtremaRatio - Ferrum Rescue multi tool - Red - knife
Ferrum Rescue is a tool designed for rescue operations, developed in collaboration with my friend Andrea Micheli, military and law enforcement expert, journalist and shooting instructor. Made with a very compact handle, this rescue tool is equipped with 3 blades, each of which has a specific function:
The first and main blade has a thickness of 3 millimeters and is designed to be used for more demanding purposes and to protect the cutting edge of the other two from premature wear. The teeth allow it to cut larger ropes or textile materials, the remaining smooth part has the classic function of a knife. The second blade is a scalpel, which can be used for extremely precise cuts and for emergency first aid interventions. The third blade, on the back of the first, is the smallest of the 3, it has the function of cutting lines, capable of cutting paracord and aramid material.
The interaction of the main blade with the scalpel allows the operator to make a quick emergency cut to free any injured person from his or her clothing.
The line cutter blade and the scalpel are both interchangeable.
Ferrum Rescue 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. On the back there is also a hard metal glass breaker.
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 operator 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.
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: Satin
Handle: Rough Anticorodal
Blade length: 56mm.
Blade thickness: 3mm.
Closed length: 90mm.
Total length: 170mm. (18mm. INCLUDING SCALPEL BLADE)
Weight: 85g.
Closure: Liner Lock
Clip: Removable and reversible, in stainless steel
Packaging: Cardboard box with Extrema Ratio logos
Note: -ER-FE-RR -
ExtremaRatio - Ferrum E knife - Tactical Mud - knife
Ferrum E is a simple, essential and functional EDC (Every Day Carry) folding knife. Equipped with a drop blade, it has a slim and compact shape, the two anodised anticorodal aluminium sheaths make up a light, slender and at the same time very durable handle. It can be housed in a breast pocket, in small torch holsters or inside a single M.O.L.E. loop.
Equipped with a flipper-assisted opening system, the blade rotates on ball bearings that allow for smooth and uncertainty-free blade movement. This mechanism allows the operator to open the blade quickly and easily, even with one hand. The locking system adopted is the tried and tested liner lock.
The reversible clip is positioned at the rear.
Intended use: Tactical / EDC
Production type: Industrial
Country of Production: Italy
Blade: Stainless steel N690Co 58HRC
Blade finish: Satin
Handle: Rough Anticorodal
Blade length: 75mm.
Blade thickness: 3mm.
Length closed: 90mm.
Total length: 186mm.
Weight: 87g.
Closure: Liner Lock
Clip: Removable and reversible, stainless steel
Packaging: Cardboard box with Extrema Ratio logos
Notes: -ER-FE-E-TM -
ExtremaRatio - BF1CD - Black Rough - knife
Intended Use: Tactical / EDC
Production type: Industrial
Country of Production: Italy
Blade: stainless steel N690Co 58HRC
Blade Finish: Burnishing MIL-C-13924
Handle: Rough Anticorodal
Blade Length: 70mm.
Blade thickness: 3mm.
Length closed: 99mm.
Total length: 168mm.
Weight: 85g.
Closure: Liner Lock
Clip: Removable and reversible, stainless steel
Packaging: Cardboard box with Extrema Ratio logos
Notes: -ER-BF1CDBR -
ExtremaRatio - Col Moschin Paper Knife - with plexiglass base - paper knife
COL MOSCHIN Paper Knife is a paper knife whose shape 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 tool is part of a larger collection.
COL MOSCHIN Paper Knife is not only a decorative and evocative accessory, but also has all the tactical characteristics that are typical of Extrema Ratio's DNA.
It is equipped with nylon grips and a sturdy steel blade that takes up the same shape as its older brother.
COL MOSCHIN Paper Knife is very practical and convenient for the office or home studio and is also perfect as an original gift idea.
Intended use: Collection/Tactical/Military
Country of production: Italy
Blade: NOT SHARP stainless steel
Blade Finish: MIL-C-13924 Bluing
Handle: nylon
Blade length: 100mm.
Blade thickness: 1.5mm.
Total length: 180mm.
Weight: 45g.
Scabbard: -
Packaging: Cardboard box with Extrema Ratio logos with hand-polished plexiglass base in BLACK color with engraved Extrema Ratio logo
Note:ER-COL-TC -
ExtremaRatio - MF1 Rough Black Knife - folding knife. The MF stands for Medium Folder
This line of knives fits between the Basic Folders series and the Heavy Folders series. The typical mechanism of the series is the LINER-LOCK. The overall structure is robust. All knives in the MF series have a rear glass breaker. They also feature the innovation of the adjusting locknut on the blade fixing pivot.
By removing the locknut it is possible to tighten or loosen the central pivot as desired, to achieve the desired opening fluidity. It will be enough to lock the pivot screw with the locknut to fix the adjustment. The hemispherical milling on the handles facilitate the change of grip from "saber grip" to "reverse grip". The clip is reversible.
The BC (Belt Cutter) version features a rear seatbelt cutter with an easily obtainable and replaceable industrial cutter blade. In addition, a slotted screwdriver is inserted inside the handle that allows for the adjustment and calibration of firearm optics. This version is produced with a rough grip to offer a better grip.
Intended use: Tactical
Type of production: Industrial
Blade production: Italy
Blade: Stainless steel N690Co 58HRC
Blade treatment: Testudo
Handle: Anticorodal
Blade length: 95mm.
Blade thickness: 4mm.
Closed length: 134mm.
Total length: 225mm.
Thickness when closed: 24mm.
Balance: -
Weight: 165g.
Closure: Liner Lock
Clip: Stainless Steel
Sheath: -
Packaging: Black cardboard box with Extrema Ratio logos
Notes: -ER-MF1R -
ExtremaRatio - RAO II Expeditions - knife
Intended use: hiking / Survivalism
Type of production: industrial
Country of manufacture: Italy
Blade: stainless steel N690Co 58HRC
Blade treatment: Dark Stone
Handle: anticorodal of 4.5mm
Blade length: 115mm.
Blade thickness: 6.3mm.
Length closed: 142
Total length: 262mm.
Weight: 330g.
Closure: modified front lock - threaded safety pin
Sheath: tactical Nylon with M.O.L.L.E. attachments suitable for both closed and open knife
Notes: diamond sharpener and fire starter includedER-RAO-II-EX -
ExtremaRatio - MF1 BC - Desert Warfare - folding knife made in italy
Intended Use: Tactical/Emergency
Production type: Industrial
Country of Production: Italy
Blade: Stainless steel N690Co 58HRC
Blade Finish: Desert Warfare
Handle: Anodized Anticorodal Aluminum
Blade Length: 95mm.
Blade thickness: 4mm.
Length closed: 134mm.
Total length: 225mm.
Thickness when closed: 24mm.
Weight: 162g.
Closure: Liner Lock
Clip: Stainless Steel
Packaging: cardboard box with Extrema Ratio logos
Notes: belt cutter, glass breaker, optics screwdriverER-MF1BCDW -
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 - Waki Black Machete Knife - Tactical Knife
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 produced 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 Black 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/MacheteType of production: Industrial
Country of manufacture: Italy
Blade: stainless steel N690Co at 58HRC
Blade Treatment: Burnishing MIL-C-13924
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: -ER-WA-BK -
ExtremaRatio - K1 Dobermann knife - XXV Anniversary - Limited Edition
This special edition in 250 pieces, proposed on the occasion of the 25th anniversary of the brand, maintains the shape of the original, but with materials and finishes corresponding to the current production.
The K1 is equipped with a modified spear point profile blade, characterized by a tip that combines the 40° "tanto" profile with the more traditional European one, creating a sharp but very solid hybrid which, with the false false edge, makes it particularly effective in jab. The bevel is high, allowing for a very effective cutting angle.
The blade is immediately recognizable by the fenestration at the heel, which allows for considerable lightening without compromising its strength. It is made of Böhler N690 steel, with heat treatments that bring its hardness to 58 HRC for the best combination of edge hold and resistance. The finish is satin with flat grinding.
The handle, in anodized Anticorodal alloy, compared to the original presents the lightening on the sides that make the Extrema Ratio knives immediately distinguishable, but maintains the arched shape and the lateral "bellies" of the K1, offering an excellent grip both in the "saber" than in the "reverse" grip.
The terminal part of the handle curves to form a sort of hook which allows particularly easy and rapid extraction from the scabbard, while the tang protrudes from it with a triangular cusp which acts as a glass breaker with a slot which allows the knife to be equipped of lasso.
The leather scabbard faithfully reproduces the original while maintaining both the qualities of ease and speed of extraction. The carry can take place in an upside-down axillary position, horizontally on the belt or tactically on the thigh.
The K1 equipment is completed with a polypropylene case , complete leather sheath and underarm shoulder strap.
WEIGHT g.: 493
WEIGHT OZ.: 17.39
BLADE LENGTH (MM): 210
BLADE LENGTH (IN): 8.26
TOTAL LENGTH (MM): 351
TOTAL LENGTH (IN): 13.81
BLADE THICKNESS (MM): 6.3
BLADE THICKNESS (IN): 0.25
BLADE MATERIAL: BÖHLER N690 STEEL (58HRC)
BLADE FINISH: SATIN
BLADE GRINDING: FLAT EDGE
HANDLE MATERIAL: ANODIZED ANTICORODAL ALUMINUMER-K1-D-LE -
ESEE Knives - Model 4HM Modified Handle - Leather Sheath - Knife
Intended Use: Bushcraft / Utility
Production Type: Industrial
Country of Production: USA
Blade: full tang in 1095 58/60HRC steel
Blade Finish: Black Traction Coating
Handle: Micarta
Blade Length: 115mm.
Blade thickness: 4.8mm.
Total length: 225mm.
Weight: 219g.
Sheath: leather, belt, for vertical carry; Made in the USA
Packaging: cardboard box with ESEE logos.
Notes: modified handle version of Model 4, more suitable for precision work and bushcraft usesESEE-4HM -
ExtremaRatio - Sethlans Expeditions - Survival Knife - knife
Sethlans Expeditions, as well as the Sethlans model from which it derives, is a fixed blade work knife designed to deal with a wide range of situations, but also as a backup blade. The Sethlans Expeditions has been designed in collaboration with Daniele Dal Canto, Master Advanced F.I.S.S. (Federazione italiana survival sportivo e sperimentale) instructor.
Sethlans Expeditions has a Böhler N690 steel blade heat treated to 58 HRC with MIL-C-13924 burnishing and stone washed surface treatment (Dark Stone finish). The knife comes with desert colored G10 grips that feature the ergonomic design characteristic of Extrema Ratio handles. They can be removed to free the skeleton structure of the knife, allowing maximum lightness with minimum thickness.
For lovers of extreme customization, the full-tang structure allows the handle to be covered with paracord. The sheath is composed of a very light and minimalist Kydex part. It can be disassembled and can be adapted to both left- and right-handed people. The addition of an optional belt clip allows both vertical and horizontal positioning of the knife and makes the sheath much more versatile than the textile version. It is equipped with a mini pouch with M.O.L.L.E. system containing paracord with flammable filament to be used in case of emergency and/or critical weather conditions and a Firesteel for lighting fires.
Intended use: Survival / Bushcraft / UtilityProduction type: Industrial
Country of Production: Italy
Blade: full tang in stainless steel N690Co 58HRC
Blade Finish: Burnishing MIL-C-13924 with Dark Stone finish
Handle: G-10
Blade length: 107mm.
Blade thickness: 6.3mm.
Total length: 224mm.
Weight: 207g.
Sheath: Kydex and cordura, M.O.L.L.E. compatible.
Package: Cardboard box with Extrema Ratio logos.
Notes: Designed and developed thanks to the collaboration with the instructor Daniele del Canto of F.I.S.S.S. (Federazione Italiana Survival Spotivo e Sperimentale).ER-SET-EX -
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 - BF2CD Knife Stone Washed - Classic Drop - knife
The BF2 is a "full size" lockable particularly suitable for professional use by military and police operators in the field. The handle is firm and comfortable; the clip, reversible and enveloping, becomes a useful and comfortable support for the thumb in "reverse grip". The grip is full with the characteristic lowered surfaces to engage the opening "pins" without protruding from the profile of the closed knife. The blade, available in a drop or a lot version, has a flat edge and, as in the BF1, a particularly thick and resistant tip. The blade locking mechanism is the tested LINER-LOCK, assisted by a safety mechanism to be operated manually protected by a casing.
Intended use: Tactical / Military
Type of production: industrial
Blade: N690Co 58HRC stainless steel
Country of production: Italy
Handle: Anticorodal
Blade length: 90mm.
Blade thickness: 3mm.
Closed length: 124mm.
Total length: 210mm.
Balancing: -
Weight: 142g.
Closure: Liner Lock
Clip: reversible and removable in stainless steel
Sheath: -
Notes: Safety stop with open knifeER-BF2CD-SW -
ExtremaRatio - BF2CT Knife Stone Washed - Classic Tanto - knife
Il BF2 è un chiudibile “full size” particolarmente indicato per l’impiego professionale da parte di operatori militari e di polizia sul campo. L’impugnatura è salda e confortevole; la clip, reversibile ed avvolgente, diventa un utile e comodo appoggio per il pollice in “reverse grip”. La guancetta è piena con i caratteristici piani ribassati per impegnare i “pin” d’apertura senza che sporgano dal profilo del coltello chiuso. La lama, disponibile in versione drop o tanto, ha l’arrotatura piatta e, come nel BF1, la punta particolarmente spessa e resistente. Il meccanismo di blocco della lama è il collaudato LINER-LOCK, coadiuvato da un meccanismo di sicura da azionare manualmente protetto da un carter.
Destinazione d'uso: Tattico/Militare
Tipo di produzione: industriale
Lama: in acciaio inox N690Co 58HRC
Paese di produzione: Italia
Impugnatura: Anticorodal
Lunghezza lama: 90mm.
Spessore lama: 3mm.
Lunghezza chiuso: 124mm.
Lunghezza totale: 210mm.
Bilanciatura: -
Peso: 142g.
Chiusura: Liner Lock
Clip: reversibile ed amovibile in acciaio inox
Fodero: -
Note: Fermo di sicurezza a coltello apertoER-BF2CT-SW -
ExtremaRatio - T4000 C Satin - knife
Intended Use: Sporting / Backup
Production type: Industrial
Country of Production: Italy
Blade: Bohler N690Co stainless steel at 58HRC
Blade Finish: Satin finish
Handle: Forprene
Blade length: 104mm.
Blade thickness: 4mm.
Total length: 208mm.
Weight: 196g.
Sheath: Nylon
Packaging: Cardboard box with Extrema Ratio logos.ER-T4C-SA -
ExtremaRatio - Bayonet O.D. Green Civile NFG Fulcrum knife - Testudo - knife
After the success of the FULCRUM multirole knife, the civil bayonet version NFG (No Fixing Gears, without rifle attachment) was born. Like the FULCRUM, the bayonet is an extremely robust and versatile knife, the blade withstands breaking loads exceeding 150 kg, the tip is very robust and the profile allows you to work for a long time with the knife without affecting the sharpness of the last section . The advanced center of gravity and the weight of the blade make it suitable for heavy field work.
Intended use: tactical / military / multirole
Blade: N690Co 58HRC stainless steel
Handle: removable, in Forprene
Blade length: 180mm.
Blade thickness: 6.3mm.
Closed Length: -
Total length: 310mm.
Balance: advanced, 1.5 cm from the lower guard branch
Weight: 330g.
Closing: -
Clip: -
Sheath: modular tactical, from thigh or belt, in Nylon and Kydex, with blade attachment system for cutting with wire cutters
Notes: diamond sharpener integrated in the sheath - civil version, without rifle couplingsER-FBN-GR -
ExtremaRatio - Sethlans Survival - D2 Exp Dark - Knife
The "Extrema Ratio Sethlans" is a fixed blade work knife created to face a wide range of situations, suitable for survival, bushcraft, prepping, but also as a backup blade. The Sethlans is available in two versions with two different types of steel.
Black version that uses D2 steel, heat treated and cryogenically treated at 60 HRC, which has a high resharpening capacity even with makeshift tools. To give greater qualities of hardness and resistance, the blade is coated with the new Teflon-based product "EXP DARK", proposed by Extrema Ratio.
The knife comes with G10 grips that feature the ergonomic design characteristic of Extrema Ratio handles. They can be removed by releasing the skeletonized structure of the knife, which allows maximum lightness with minimum thickness. For lovers of extreme customization, the full-tang structure allows the handle to be covered with a paracord cord.
The sheath is composed of a part in very light and minimalist Kydex. It can be disassembled and can be adapted for both left and right handed users. The addition of an optional belt clip allows the knife to be positioned both vertically and horizontally and makes the sheath much more versatile than the textile version. It is also equipped with a mini pouch with M.O.L.L.E. system. containing a double-sided stone for sharpening and a firesteel for lighting fires.
Intended use: Hiking / Bushcraft
Country of Production: Italy
Type: Fixed Blade
Blade length: 107mm
Total length: 224mm
Blade thickness: 6.3mm
Sharpening: Flat edge
Weight: 207g
Blade Material: D2 Steel (60HRC)
Blade finish: Teflon-based Exp Dark
Handle: G10
Notes: designed in collaboration with Daniele Dal Canto, Master Advanced F.I.S.S.S. (Italian Federation of Sports and Experimental Survival).ER-SET-BK -
ExtremaRatio - Sethlans Survival - N690 Stone Washed - Knife
The "Extrema Ratio Sethlans" is a fixed blade work knife created to face a wide range of situations, suitable for survival, bushcraft, prepping, but also as a backup blade. The Sethlans is available in two versions with two different types of steel.
Stone Washed version that uses Böhler N690 heat treated at 58 HRC, chosen for the reliability it has shown over the last 20 years due to its resistance to oxidation and durability of the wire.
The knife comes with G10 grips that feature the ergonomic design characteristic of Extrema Ratio handles. They can be removed by releasing the skeletonized structure of the knife, which allows maximum lightness with minimum thickness. For lovers of extreme customization, the full-tang structure allows the handle to be covered with a paracord cord.
The sheath is composed of a part in very light and minimalist Kydex. It can be disassembled and can be adapted for both left and right handed users. The addition of an optional belt clip allows the knife to be positioned both vertically and horizontally and makes the sheath much more versatile than the textile version. It is also equipped with a mini pouch with M.O.L.L.E. system. containing a double-sided stone for sharpening and a firesteel for lighting fires.
Intended use: Hiking / Bushcraft
Country of Production: Italy
Type: Fixed Blade
Use: Survival, bushcraft, prepping
Blade length: 107mm
Total length: 224mm
Blade thickness: 6.3mm
Sharpening: Flat edge
Weight: 207 g
Blade Material: Böhler N690Co Steel (58HRC)
Blade Finish: Stone Washed
Handle: G10
Notes: designed in collaboration with Daniele Dal Canto, Master Advanced F.I.S.S.S. (Italian Federation of Sports and Experimental Survival).ER-SET-SW -
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 -
ESEE Knives - Esee 3P Desert MB-DE knife - knife
Intended use: Sports
Type of production: Industrial
Blade production: USA
Blade: 1095 carbon steel
Blade treatment: Textured powder coat
Handle: Desert Canvas Micarta
Blade length: 97mm.
Blade thickness: 3mm.
Length closed: -
Total length: 210mm.
Thick when closed: -
Balancing: -
Weight: 148g.
Closing: -
Clip: -
Sheath: ABS and Nylon with additional clip for wearing on the belt
Packaging: Transparent plastic bag
Notes: Malice ClipsES-MB-DE -
ExtremaRatio - Resolza 10 - Stone Washed - pattada knife
RESOLZA, a term of ancient origin, is today one of the most famous traditional knives of our country. The name suggests the razor by chance.
It was born in Sardinia centuries ago and has accompanied its inhabitants until today in the daily work of a peasant and pastoral life, following them even when its men were called to war. The chronicles of the Sassari Brigade during the First World War cite this knife among its soldiers' equipment.
We wanted to make a tribute by revisiting it according to our canons, without wanting to hurt any of the prestigious Sardinian artisans who still today pass on the tradition and wisdom of their ancestors. The dimensions and proportions are the original ones of a 10 cm blade, but the materials and technologies are those of our production. The handle revised in our style, the blade most faithful to tradition. In addition to the original, it has the blade lock open.
Intended use: sports
Type of production: industrial
Country of production: Italy
Blade: stainless steel N690Co 58HRC
Handle: Anticorodal
Blade length: 100mm.
Blade thickness: 3mm.
Total length: 220mm.
Weight: 65g.
Closure: Liner Lock
Clip: -
Sheath: -
Notes: blade with stonewashed treatmentER-RE10-SW -
ExtremaRatio - Fulcrum Bayonet NFG Black - Knife
After the success of the FULCRUM multi-role knife, the bayonet version was born. Like the FULCRUM, the bayonet is an extremely robust and versatile knife, the blade holds loads at break above 150 kg, the tip is very sturdy and the profile allows it to work for a long time with the knife without affecting the sharpening of the last section , which guarantees, together with the partial dorsal sharpening, to maintain the penetration capacity necessary for hand-to-hand combat against targets covered by heavy clothing, clothing and soft ballistic protections. The advanced center of gravity and the weight of the blade make it suitable for heavy field work. NFG version (No Fixing Gears, without rifle mount).
Intended use: tactical / military / multi-role
Blade: full tang in stainless steel N690Co 58HRC
Handle: removable in Forprene
Blade length: 180mm.
Blade thickness: 6.3mm.
Total length: 310mm.
Balancing: advanced, 1.5 cm from the lower guard branch
Weight: 378g.
Sheath: modular tactile with thread trimmer, thigh or belt, in Nylon and KydexER-FBN-BK -
ExtremaRatio - Fulcrum Bayonet knife NFG Desert SW - knife
Model: Lightened version of the classic Fulcrum Bayonet, with shearder, stone washed blade, desert handle and desert nylon sheath.
Intended use: tactical / military / multi-role
Blade: full tang in stainless steel N690Co 58HRC
Handle: dismountable in Forprene
Blade length: 180mm.
Blade thickness: 6.3mm.
Length closed: -
Total length: 310mm.
Balancing: advanced, 1.5 cm from the lower guard branch
Weight: 378g.
Closure: -
Clip: -
Sheath: modular tactical with shear, thigh or belt, in Nylon and Kydex
Note: -ER-FBN-DE -
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 - BF0 R CD 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 keeps all the features of the BF0 updated with the new High Speed Razor Opening opening system. Available in the following versions: BF0 R CD Desert with stone washed blade and HCS and BF0 R CD Stone Washed with stone washed blade and black grip.
Type of production: industrial
Blade: stainless steel N690Co 58HRC
Country of production: Italy
Handle: Nylon with stainless steel folders
Blade length: 55mm.
Blade thickness: 2.5mm.
Length closed: 85mm.
Total length: 140mm.
Weight: 53g.
Closure: Liner Lock
Clip: reversible and removable, in stainless steelER-BF0R-HCS -
ExtremaRatio - BF1CD Desert Warfare - Drop Point - knife
Intended use: Tactical / Sports
Type of production: Industrial
Country of production: Italy
Blade: stainless steel N690Co 58HRC
Blade treatment: Desert Warfare
Handle: Anticorodal
Blade length: 70mm.
Blade thickness: 3mm.
Length closed: 99mm.
Total length: 168mm.
Thick when closed: 11mm.
Weight: 85g.
Opening: Ambidextrous opening pin on the blade
Washers: Teflon
Closure: Liner Lock
Clip: stainless steel, deep pocket type, removable and reversible
Sheath: -
Packaging: cardboard box with Extrema Ratio logos
Note: -ER-BF1CD-DW -
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