Knives, collection knife, tactical knives, outdoor knives, pocket knives and tools
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ExtremaRatio - DMP - Black - tactical knife
DMP is a multi-role knife characterized by a strong versatility of use thanks to the small dimensions. The drop point blade with reinforced tip is particularly useful for heavy duty use. The full flat rounding gives excellent cutting characteristics.
The sheath is minimalist, stripped of most of the fabric adopting a retention system of 2nd level, going to recall the style of the model to which it is inspired. The main shell is made by injection in shockproof nylon. The secondary retention system is reversible for the ambidextrous portability of the knife.
Intended Use: Tactical / Multi-role
Production type: Industrial
Country of Production: Italy
Blade: Stainless steel N690Co 58HRC
Blade Treatment: Burnishing MIL-C-13924
Handle: Forprene
Blade length: 152mm.
Blade thickness: 6.3mm.
Total length: 282mm.
Weight: 283g.
Sheath: Nylon
Packaging: Cardboard box with Extrema Ratio logos.
Notes: -ER-DMP-BK -
ExtremaRatio - DMP - HCS StoneWashed - Knife
DMP is a multi-role knife characterized by a strong versatility of use thanks to the small dimensions. The blade, drop point shape with reinforced tip, is particularly useful for heavy duty use. The full flat rounding gives excellent cutting characteristics.
The sheath is minimalist, stripped of most of the fabric adopting a retention system of 2nd level, going to recall the style of the model to which it is inspired. The main shell is made by injection in shockproof nylon. The secondary retention system is reversible for the ambidextrous portability of the knife.
Intended Use: Tactical / Multi-role
Production type: Industrial
Country of Production: Italy
Blade: Stainless steel N690Co 58HRC
Blade Treatment: Stone Washed
Handle: Forprene
Blade length: 152mm.
Blade thickness: 6.3mm.
Total length: 282mm.
Weight: 283g.
Scabbard: Nylon
Packaging: Cardboard box with Extrema Ratio logos.
Notes: -ER-DMP-HC -
ExtremaRatio - DMP - Wolf Gray StoneWashed - Knife
DMP is a multi-role knife characterized by a strong versatility of use thanks to the small dimensions. The blade, drop point shape with reinforced tip, is particularly useful for heavy duty use. The full flat rounding gives excellent cutting characteristics.
The sheath is minimalist, stripped of most of the fabric adopting a retention system of 2nd level, going to recall the style of the model to which it is inspired. The main shell is made by injection in shockproof nylon. The secondary retention system is reversible for the ambidextrous portability of the knife.
Intended Use: Tactical / Multi-role
Production type: Industrial
Country of Production: Italy
Blade: Stainless steel N690Co 58HRC
Blade Treatment: Stone Washed
Handle: Forprene
Blade length: 152mm.
Blade thickness: 6.3mm.
Total length: 282mm.
Weight: 283g.
Scabbard: Nylon
Packaging: Cardboard box with Extrema Ratio logos.
Notes: -ER-DMP-WG -
ExtremaRatio - DMP - Ranger Green StoneWashed - knife
DMP is a multi-role knife characterized by a strong versatility of use thanks to the small dimensions. The blade, drop point shape with reinforced tip, is particularly useful for heavy duty use. The full flat rounding gives excellent cutting characteristics.
The sheath is minimalist, stripped of most of the fabric adopting a retention system of 2nd level, going to recall the style of the model to which it is inspired. The main shell is made by injection in shockproof nylon. The secondary retention system is reversible for the ambidextrous portability of the knife.
Intended Use: Tactical / Multi-role
Production type: Industrial
Country of Production: Italy
Blade: Stainless steel N690Co 58HRC
Blade Treatment: Stone Washed
Handle: Forprene
Blade length: 152mm.
Blade thickness: 6.3mm.
Total length: 282mm.
Weight: 283g.
Scabbard: Nylon
Packaging: Cardboard box with Extrema Ratio logos.
Notes: -ER-DMP-RG -
ExtremaRatio - SERE 2 - GOI Gruppo Operativo Incursori - rescue knife
S.E.R.E. 2, adopted by the Operational Group of Italian Navy Incursors, is the development of the S.E.R.E. 1, created by a study group composed of Special Forces operators, martial artists and experts in survival techniques. This variant 2 has been revised according to the needs expressed by the Department.
The acronym S.E.R.E. refers to the four principles "Survival, Evasion, Resistance and Escape" which make up the training program provided to military personnel at high risk of capture.
The S.E.R.E. 2 is suitable for both tip and cut use. The unique grip, unlike the classic blades of this type, is fixed between the index and the middle, thus forming a single axis from the tip of the blade to the user's wrist, allowing its use also in reverse grip. The handle has the same ergonomics as the butt of a firearm; this grip allows an instinctive and immediate use, being able to easily integrate the training in the training activity.
The geometry of the tip ensures maximum penetration, at the same time its axial profile with a triangular base protects its resistance. The design of the blade has on one side a partially serrated profile to favor the cutting of cordages, and on the other hand a classic cut or straps that, unlike the previous model, has re-sharpening and interchangeable blades.
The central loop, which has the dual function of lightening and turn-crickets, recalls the maritime origins of its creators. The peculiarity of the knife is that it has been specifically designed to be used even without the handle; the two holes in the part dedicated to the handle facilitate assembly.
The kydex sheath has a basic retention that can be used alone for operators who need extremely fast knife use, and a removable locking lock if necessary. The knife is supplied with double safety for ambidextrous mounting. An insert with a flat-blade screwdriver is available as an accessory. Comes with belt clip for belt fastening and paracord for fixing on the M.O.L.L.E. system.
"Using the gun, knife or other weapon for us is the same thing: it's just the extension of the hand." Quote from a commander of the ward.
Intended use: Tactical / Military / RescueType of production: Industrial
Lama production: Italy
Blade: stainless steel N690Co 58HRC
Blade treatment: Burnishing MIL-C-13924
Handle: Forprene
Blade length: 148mm.
Blade thickness: 6.3mm.
Total length: 217mm.
Thickness when closed: -
Weight: 306g.
Sheath: In Kydex, with Tek-Lok hooking system
Packaging: Cardboard box with Extrema Ratio logos
Note: -ER-SERE2 -
ExtremaRatio - Selvans Expeditions - Heavy Utility Survival Knife - knife
Selvans Expeditions, as well as the Selvans model from which it derives, was born from the collaboration between Extrema Ratio and the Master instructor F.I.S.S. (Federazione Italiana Survival Sportivo e Sperimentale) Daniele Dal Canto. This tool is the result of the modification of the ONTOS, military survival knife, realized in order to accentuate and maximize the performance of the knife.
Selvans Expeditions uses Böhler N690 steel heat treated to 58 HRC with MIL-C-13924 burnishing and stone washed surface treatment (Dark Stone finish). The handle has been lengthened and the blade weighted to promote effective cutting strokes. It comes with a desert Cordura sheath with MOLLE system, equipped with a mini pouch containing paracord with flammable filament that can be used in case of emergency and/or critical weather conditions and a Firesteel for lighting fires.
The survival kit (not included and purchasable separately) has been optimized and includes whistle, chainsaw, drinking pads, compass, brass wire, flintlock, flashlight, paracord 2,5 mt. and sharpener.
Intended use: Survival / Heavy Utility
Production type: Industrial
Country of Production: Italy
Blade: Stainless steel N690Co 58HRC
Blade Finish: Burnishing MIL-C-13924 with Dark Stone finish
Handle: Forprene
Blade length: 160mm.
Blade thickness: 6.3mm.
Total length: 312mm.
Balance: Advanced
Weight: 430g.
Sheath: 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-SEL-EX -
ExtremaRatio - Selvan Heavy Utility Survival Knife in San Mai V-TOKU2 - Limited Edition - knife
Japanese steel blends with Italian excellence
For this 2020 collaboration, exclusive of Collini Cutlery, we have decided to propose a series of best sellers produced by Extrema Ratio. Knives made with the famous San Mai steel produced by Japanese Takefu Steel. Specifically, we used V-Toku2 carbonaceous at 62 / 63HRC for the central plate and SUS410 stainless steel for the two external plates, in order to guarantee a very high cutting capacity, penetration and sealing of the wire together with an easy regrinding. and maintenance but at the same time the blade has a remarkable resistance to corrosion and an important increase in resilience given by the type of external steel and by the laminated structure.
Selvan model: for this First Production Run a run of 5 pieces numbered from 1 to 5 was created.The Selvans was born from the collaboration between Extrema Ratio and FISSS (Italian Federation of Sports and Experimental Survival). The project consists of modifying the Ontos, a military survival knife, to accentuate and maximize the performance of the knife as a hiking tool.
The handle has been lengthened and the blade weighted to favor the effectiveness of the cutting strokes and to make more use of the inertia of the stroke.
Intended use: Heavy Utility
Type of production: Industrial
Production Lama: Italy
Blade: integral, laminated Japanese steel (San Mai) with V-Toku2 (carbonaceous) cutting edge at 62 / 63HRC and SUS410 (stainless steel) external scales
Blade treatment: Testudo
Handle: Forprene
Blade length: 15.5mm.
Blade thickness: 6.3mm.
Total length: 310mm.
Thick when closed: -
Balancing: advanced
Weight: 424g.
Sheath: nylon, MOLLE compatible
Packaging: Cardboard box with Extrema Ratio logos
Notes: Numbered edition - cardboard box with Extremaratio logos and certificate - being the cutting edge in carbon steel it is advisable, in order to keep the blade in perfect condition, to protect the edge with a light surface of oil.As in the ancient Japanese Samurai swords.
The rolled steel - imported into Italy by Collini Steel directly from the Japanese Takefu Steel - is based on the ancient Japanese tradition in the creation of the famous Samurai swords. In fact, as early as 1100 the expert Japanese blacksmiths combined different materials together to give the Katana swords incredible cutting capabilities combined with a resistance and flexibility previously unknown. It is thanks to this revolutionary construction technique that Samurai swords have been preserved to this day, becoming one of the most fascinating objects made by man. Following this tradition applied to modern metallurgy, today we are able to have technologically advanced steels already tested and used in cutlery also by famous brands such as Fallkniven, Cold Steel, Mcusta, Kai, Sog, Zwilling, Rockstead, etc.
Characteristics of San Mai steel: These are different types of metals bonded together to create a composite that encloses and intensifies the strengths of the metals individually taken:
- Longer tool life
thanks to the use of very high quality steels with high carbon content (VG10, CoS, Shiro) or sintered (SPG2), in the heart of the sheet (Core Steel), the blade, once hardened, achieves decidedly hardness and cutting performance higher than those achieved with the use of traditional steels.- Greater resilience
built on the principle of Japanese swords, multilayer steel is difficult to break thanks to the toughness of the central steel (Core Steel) and the elasticity of the steel used for the side facing (Stainless Steel).- Better corrosion resistance
the steel used for the external layers (Stainless Steel) guarantees the blade a high resistance to corrosion. The combination of the two or more materials used by Takefu Steel generates, on a galvanic level, a structure that improves corrosion resistance even on the wire.- Easy processing even after heat treatment
although steel normally becomes harder after quenching, the lateral steel used in multilayer processing does not lose its softness and allows easy processing, drilling or welding even after heat treatment. For an optimal performance of the blade, cryogenic treatment is recommended.- Improvement of the aesthetic result
The knives made with multi-state steel or with a damask pattern at the end of the processing are aesthetically elegant, refined and highly appreciated by collectors all over the world.For more information: collinisteel
ER-SEL-VT -
ExtremaRatio - Resolza L Satin - folding knife
The Resolza is the typical Sardinian folding knife, called improperly "Pattada" from the name of the village in the province of Sassari which is the production center. Extrema Ratio wanted to pay homage to the most famous knife of the Italian tradition by blending its original shape and traditional, with the techniques and the most advanced materials.
Intended use: Sports
Type of production: Industrial
Blade: N690Co 58HRC stainless steel
Production Country: Italy
Handle: Anticorodal
Blade length: 150mm.
Blade Thickness: 3mm.
closed length: -mm.
Overall length: 328mm.
Weight: 117g.
Lock: Liner Lock
Clip: -
Sheath: -
Notes: -ER-RE15-SW -
ExtremaRatio - Resolza L Black - folding knife
The Resolza is the typical Sardinian folding knife, called improperly "Pattada" from the name of the village in the province of Sassari which is the production center. Extrema Ratio wanted to pay homage to the most famous knife of the Italian tradition by blending its original shape and traditional, with the techniques and the most advanced materials.
Intended use: Sports
Type of production: Industrial
Blade: N690Co 58HRC stainless steel
Production Country: Italy
Handle: Anticorodal
Blade length: 150mm.
Blade Thickness: 3mm.
closed length: -mm.
Overall length: 328mm.
Weight: 117g.
Lock: Liner Lock
Clip: -
Sheath: -
Notes: -ER-RE15-BK -
ExtremaRatio - Psycho Desert Camo 15cm. - Chef's knife
TACTICAL KNIVES MEET THE KITCHEN!Extrema Ratio is delighted to apply the strict military standards to a range of professional kitchen knives.
The steel blade is the proven BOHLER N690, a steel enriched with chrome, vanadium, molybdenum and cobalt, hardened to the hardness of 58HRC. The handle is made of Forprene, an elastomer that is in the "NATO standard" for resistance to extreme conditions, and is completely removable from the blade; this makes possible a thorough cleaning and maintenance of the knife.
Each knife comes with its own sheath, also of military origin, which does not take into account the rules of hygiene but ensures safe transport dell'affilatissima blade and protection from shocks that could reduce efficiency. We recommend to use it only for the transport and in the event of long periods of inactivity.
Use: meat / vegetables
Type of production: Industrial
Production Lama: Italy
Blade: stainless steel hardened 58HRC N690Co
Treatment Lama: Laser Desert Camo
Handle: Forprene
Blade length: 153mm.
Blade thickness: 4mm.
Overall length: 287mm.
Weight: 259g.
Sheath: Cordura, compatible M.O.L.L.E.
Packaging: Cardboard box with logos Extrema Ratio
Note: Can also be used as a knife or sports collectibles12325 -
ExtremaRatio - Kato Desert Warfare 15cm. - Santoku Knife
TACTICAL KNIVES MEET THE KITCHEN!
Extrema Ratio is delighted to apply the strict military standards to a range of professional kitchen knives.
The steel blade is the proven BOHLER N690, a steel enriched with chrome, vanadium, molybdenum and cobalt, hardened to the hardness of 58HRC. The handle is made of Forprene, an elastomer that is in the "NATO standard" for resistance to extreme conditions, and is completely removable from the blade; this makes possible a thorough cleaning and maintenance of the knife.
Each knife comes with its own sheath, also of military origin, which does not take into account the rules of hygiene but ensures safe transport dell'affilatissima blade and protection from shocks that could reduce efficiency. We recommend to use it only for the transport and in the event of long periods of inactivity.
Intended use: vegetable / meat / fish
Type of production: Industrial
Production Lama: Italy
Blade: stainless steel hardened 58HRC N690Co
Treatment Lama: Laser Desert Camo
Handle: Forprene
Blade length: 157mm.
Blade thickness: 4mm.
Overall length: 287mm.
Weight: 279g.
Sheath: Cordura, compatible M.O.L.L.E.
Packaging: Cardboard box with logos Extrema Ratio
Note: Can also be used as a knife or sports collectibles12324 -
ExtremaRatio - Kato 15cm. - Santoku Knife
TACTICAL KNIVES MEET THE KITCHEN!
Extrema Ratio is delighted to apply the strict military standards to a range of professional kitchen knives.
The steel blade is the proven BOHLER N690, a steel enriched with chrome, vanadium, molybdenum and cobalt, hardened to the hardness of 58HRC. The handle is made of Forprene, an elastomer that is in the "NATO standard" for resistance to extreme conditions, and is completely removable from the blade; this makes possible a thorough cleaning and maintenance of the knife.
Each knife comes with its own sheath, also of military origin, which does not take into account the rules of hygiene but ensures safe transport dell'affilatissima blade and protection from shocks that could reduce efficiency. We recommend to use it only for the transport and in the event of long periods of inactivity.
Intended use: vegetable / meat / fish
Type of production: Industrial
Production Lama: Italy
Blade: stainless steel hardened 58HRC N690Co
Treatment Lama: Glazing
Handle: Forprene
Blade length: 157mm.
Blade thickness: 4mm.
Overall length: 287mm.
Weight: 279g.
Sheath: black leather
Packaging: Cardboard box with logos Extrema Ratio
Note: Can also be used as a knife or sports collectibles12323 -
ExtremaRatio - Psycho 15cm. - Chef's knife
TACTICAL KNIVES MEET THE KITCHEN!Extrema Ratio is delighted to apply the strict military standards to a range of professional kitchen knives.
The steel blade is the proven BOHLER N690, a steel enriched with chrome, vanadium, molybdenum and cobalt, hardened to the hardness of 58HRC. The handle is made of Forprene, an elastomer that is in the "NATO standard" for resistance to extreme conditions, and is completely removable from the blade; this makes possible a thorough cleaning and maintenance of the knife.
Each knife comes with its own sheath, also of military origin, which does not take into account the rules of hygiene but ensures safe transport dell'affilatissima blade and protection from shocks that could reduce efficiency. We recommend to use it only for the transport and in the event of long periods of inactivity.
Use: meat / vegetables
Type of production: Industrial
Production Lama: Italy
Blade: stainless steel hardened 58HRC N690Co
Treatment Lama: Glazing
Handle: Forprene
Blade length: 153mm.
Blade thickness: 4mm.
Overall length: 287mm.
Weight: 259g.
Sheath: black leather
Packaging: Cardboard box with logos Extrema Ratio
Note: Can also be used as a knife or sports collectibles12321 -
ExtremaRatio - Selvans - Heavy Utility Survival Knife
The Selvans is born from the collaboration between Extrema Ratio and FISSS (Italian Federation of Sports and Experimental Survival). The project consists of modifying Ontos, a military survival knife, to accentuate and maximize the knife's performance as a hiking tool.
The handle has been lengthened and the blade weighed down to facilitate the effectiveness of the cutting strokes and to make more use of the inertia of the blow.
Intended use: Heavy Utility
Type of production: Industrial
Country of production: Italy
Blade: stainless steel N690Co 58HRC
Surface treatment: Brun-MIL-C-13924
Handle: Forprene
Blade length: 15.5mm.
Blade thickness: 6.3mm.
Total length: 310mm.
Balancing: advanced
Weight: 424g.
Sheath: nylon, MOLLE compatible
Packaging: Cardboard box with Extrema Ratio logos
Note: developed in collaboration with FISSS (Italian Federation of Sports and Experimental Survival)10849 -
ExtremaRatio - Col Moschin knife - Training Knife
Coltello da allenamento Extrema Ratio, interamente realizzato in alluminio aeronautico anodizzato, riprende in tutto e per tutto le forme dei coltelli originali Extrema Ratio utilizzando anche le impugnature originali in Forprene.
Privi di punta e di tagliente, questi coltelli offrono un feeling realistico e la massima sicurezza durante l'addestramento e la pratica di arti marziali che richiedono l'uso del coltello.
Destinazione d'uso: Allenamento
Produzione: Italia
Lama: Alluminio Aeronautico 6061 T6
Trattamento: Anodizzazione
Impugnatura: Forprene
Fodero: -
Lunghezza Lama: 155mm
Lunghezza Totale: 285mm
Spessore Lama: 6mm
Peso: 160g.ER-COL-TK -
ExtremaRatio - Ultramarine Dive Knife - diving knife
ULTRAMARINE is the result of four years of research and development carried out by EXTREMA RATIO in collaboration with military sub-units of the Italian special units, divisions of law enforcement and civil professionals. The units responsible for underwater and amphibious operations use a series of specialized knives .The objective of the project is to replace all these knives with a single tool, versatile but at the same time, aimed at fulfilling all the functions required by the operators of these delicate specializations.
Intended use: military / sub / multi-role
Type of production: Industrial
Lama production: Italy
Blade: stainless steel N690Co 58HRC with groove spins shackles
Blade treatment: testudo
Handle: Non-slip abrasive polyamide, stainless steel skull crasher and Cordura elastic gripping system (Cordona)
Blade length: 150mm.
Blade thickness: 6.3mm.
Length closed: -
Total length: 298mm.
Thick when closed: -
Balancing: set back, at 4cm.
Weight: 390g.
Closing: -
Clip: -
Sheath: modular - soft shell in closed cell polyethylene foam, rigid ABS shell with cordura leg system with anti-extraction safety catch. It can also be used as a rigid thigh strap only with an ABS sheath or as a multi-position sheath thanks to the double Tek-Lok attachment included
Packaging: ABS case with Extrema Ratio logos
Notes: the package includes a spray lubricant, a small diamond sharpener placed in the sheath, a large diamond sharpener joined to the ABS sheath, spare straps to modulate the sheath, two Tek-Lok attachments, spare screws, or -ring replacement, rubber to clean the blade.
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