Extrema Ratio

TK Tool 2.0 Stone Washed multifunction tool developed with military professionals. A multi tool with the basic functions needed on the battlefield. Small in size for easy carrying and use in everyday tasks.

SHRAPNEL OG Black compact (back-up) knife. In expert hands this knife is incredibly fast. Well-balanced with above-average strength, a typical tool for professionals.

N.K.1 SW, neck knife / clinch pick. Fixed knife and a sheath for hanging on the neck, optionally on a vest or belt. Based on the re-designed tactical version of the Skinner. Excellent knife used for self-defence as well as for small jobs.

The slim and lightweight Extrema Ratio knife. Durable full tang construction, the knife is also designed for use in reverse grip.

Slim, ultralight 53g universal EDC folder from Extrema Ratio's Basic Folder line. Equipped with head extension/lever for quick opening of the High Speed Razor Opening System. Technopolymer handle, clip

Slim, ultralight 53g universal EDC folder from Extrema Ratio's Basic Folder line. Equipped with head extension/lever for quick opening of the High Speed Razor Opening System. Technopolymer handle, clip

Slim, ultra-light 52g universal EDC folder. Equipped with head extension/lever for quick opening of the High Speed Razor Opening System.

Shrapnel ONE is multifunctional knife with a fixed blade and full-tang design with a full-size 5” handle in the expert hands can be incredibly fast. This is typical tool for a professional, blade for those who like to care for style and details.

Task C DW (Compact), a compact version of the full-size versatile Task knife - so-called „back-up”. Simple construction, full tang blade, thumb ramp, finger choil undercut, high flat cut. This is tool for a professional.

Requiem HCS - ultra light 86g tactical knife, with a single-sided blade (Single Edge) for users who value the reverse grip. The Aspis sheath was designed for fast picking and easy attachment inside MOLLE straps thanks to 2 multi-position clamps.

Slim, ultra-light 50 g universal EDC folder. Extrema Ratio folding knife from the Basic Folder line. Blade with Drop Point profile made of Austrian steel Böhler N690 with 58HRC hardness. Technopolymer handle. Metal clip.

Dobermann IV Tactical Black the most versatile knife Extrema Ratio. It works perfectly during hunting outdoor activity and for defense. Blade with Drop Point profile with wave-shaped cutting edge.

T4000S is a continuation of the tanto knives from Extreme Ratio. A proposal for those who love the Japanese profile of the blade, and do not want to give up the tactical handle and sheath. Incredibly fast, perfectly balanced - a tool for a professional.

BDO R Wolf Grey. Slim, ultra-light 52 g, universal EDC folder. Extrema Ratio proudly presents another folding knife from the Basic Folder line. Equipped with shaft extension / lever, for quick opening of the blade - High Speed Razor Opening System.

Shrapnel OG FH (Full Handle) Desert Warfare. Compact knife (back-up) with a fixed blade full-tang construction and a full-size 5 "handle of an assault knife. Incredibly fast and dangerous, typical professional tool.

BFO R CD Stone Washed. Slim, ultra-light 53 g universal EDC folder. Extrema Ratio folding knife from the Basic Folder line. Equipped with shaft extension / lever, for quick opening of the so-called blade High Speed Razor Opening System.

Requiem Ranger Green - ultra light 86g tactical knife, with a single-sided blade (Single Edge) for users who value the reverse grip. The Aspis sheath was designed for fast picking and easy attachment inside MOLLE straps thanks to 2 multi-position clamps.

Requiem Desert - ultra light 86g tactical knife, with a single-sided blade for users who value the reverse grip. The Aspis sheath was designed for fast picking and easy attachment inside MOLLE straps thanks to 2 multi-position clamps.

Requiem Black - ultra light 86g tactical knife, with a single-sided blade (Single Edge) for users who value the reverse grip. The Aspis sheath was designed for fast picking and easy attachment inside MOLLE straps thanks to 2 multi-position clamps.

Scout Black - slim, easy to use, versatile. Compact knife with fixed blade and false blade for users who appreciate a reversed grip. The false blade is designed to support the thumb or whole hand according to the 2 knife technique.

Mamba Black - ultralight 85 g tactical knife. Perfectly balanced with above-average strength. In expert hands, incredibly fast and effective. Aspis scabbard developed for quick picking and easy attachment inside MOLLE straps thanks to 2 clamps.

Mamba Ranger Green - ultra-light 85g tactical knife. Perfectly balanced with above-average strength. In expert hands, incredibly fast and effective. Aspis sheath developed for quick picking and easy attachment inside MOLLE straps.

Mamba Desert - ultra-light 85g tactical knife. Perfectly balanced with above-average strength. In expert hands, incredibly fast and effective. Aspis sheath developed for quick picking and easy attachment inside MOLLE straps thanks to 2 clamps.

T4000S is a continuation of the collection tanto knives made by Extreme Ratio. This is the best choice for those who love the Japanese profile of the blade, and do not want to give up the tactical hilt and sheath.

Corvo is traditional knife of the Chilean army. Manufactured in several versions: Curved Corvo blade bent at a 90 ° angle, Corvo Atacameño longer, gentle bent blade making it a more universal knife. Extrema Ratio was inspired by the 2nd version.

Shrapnel OG FH (Full Handle) Black - a compact knife (back-up) with a fixed blade full-tang and a full-size 5 "handle. In practical hands this knife is incredibly fast. Typical tool for a professional.

Shrapnel OG DW - compact knife (back-up) with a fixed blade covered with desert camouflage (Desert Warfare). In expert hands this knife is incredibly fast. Well-balanced with above-average strength, a typical tool for a professional.

BF3 Dark Talon Black is a slim, lightweight, easy-to-carry Extrema Ratio series of Basic Folder. A great tool as well as an extremely effective knife for self-defense. Perfectly balanced with a sharp piercing blade.

03.4100.0130, a flat diamond sharpener from the Italian company Extrema Ratio. It perfectly collects steel, sharpening is simple and pleasant. Works well when sharpening small tools such as machete, chisels, survival knives, etc.

Pugio SE (Single Edge) Black (back-up). After the success of the Puggio dagger, Extrema Ratio has developed the Pugio SE model - a dagger with a single-sided blade, especially for users who value an inverted grip.

Col Moschin C (Compact) Black, a compact (back-up) knife version of the Col Moshin, which is equipped with the Italian 9th "Moschin" Parachute Regiment. Well-balanced with above-average strength, a typical tool for a professional.