Extrema Ratio Knives

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Folding knife Extrema Ratio Caimano Nero N.A
Folding knife Extrema Ratio Caimano Nero N.A. 9.3cm 04.1000.0166/BLK
It is the non-automatic version of the tactical knife that Extrema Ratio has supplied to the G.O.I. (Operational Raiders Group) of the Italian Navy. The blade is a 4 mm thick asymmetrical spear point. The serrated part of the edge allows to cut highly-resistant cables and fabrics without losing its sharpening. The bottom part of the handle is designed to enhance the grip for a rapid extraction of the knife from the pocket. It is also equipped with a hard-metal glass breaker. The DLC-coated titanium clip can be positioned in three different angles on both sides allowing to conceal the knife as much as possible inside the pocket.
€258.87

In stock

Survival knife Extrema Ratio RAO Avio raoavio 11.9cm - 1
Survival knife Extrema Ratio RAO Avio 11.9cm
RAO AVIO is the survival version chosen by the Italian Air Force to complement the equipment package of Eurofighter Typhoon aircrafts. The sheath holds the knife in open position. The improved survival kit includes: whistle, pocket chain saw, water purifying tabs, compass, copper wire, flint and fire striker, LED light, 2.5 mts paracord and diamond-plate sharpener. The kit is contained in a pocket fastened to the sheath by a MOLLE system.
€372.58

In stock

Tactical knife Extrema Ratio Fulcrum Bayonet Black
Fixed blade Knife Extrema Ratio Fulcrum Bayonet Black 18cm 04.1000.0301/BLK
 This Tactical knife Extrema Ratio Fulcrum Bayonet Black 04.1000.0301/BLK is extremely versatile and strong, capable of sustaining loads of over 150 kilograms. Handle made of elastic Forprene material. The tanto-shaped blade allows for large amounts of work and wear while still keeping a sharp edge at its exceedingly sturdy tip. This feature, combined with a sharp false edge (in the military versions only), makes the knife retain sufficient combat penetration capability to engage targets covered in heavy clothing, paddings or soft ballistic protections. Thanks to its weight and top-heavy balancing, the FULCRUM BAYONET blade is suitable for hard work on the field.
€382.00

In stock

Folding knife Extrema Ratio BDØ R Black
Folding knife Extrema Ratio BDØ R Desert 6cm 04.1000.0459/BLK/SW
 BDØ R Black 04.1000.0459/BLK/SW from Extrema Ratio is a new knife designed for lightness. It is characterized by a very slim profile with a focus on lightness. The blade is made in Bohler N690 steel hardened to 58 HRC, 2.36” (60mm) long, 0.1” (2.5 mm) thick, with a plain sharpening and a faux edge on the first third of the spine. The blade is deployed by the usual “Razor” tang extension which enables effortless ambidextrous operation. A simple yet sturdy liner lock system holds the blade open. The reversible clip with lightening holes contributes to maintain the weight of the knife to a minimum. With an overall length of 5.7” (165 mm) and a weight of just  52 g the Extrema Ratio BDØ R is an extremely light and slim knife which makes it an ideal EDC choice.
€78.23

In stock

Folding knife Extrema Ratio RAO Avio Black
Folding knife Extrema Ratio RAO Black 11.9cm 04.1000.0141/BLK G
RAO Avio Black 04.1000.0141/BLK G Extrema Ratio from  is the survival version chosen by the Italian Air Force to complement the equipment package of Eurofighter Typhoon aircrafts. The improved survival kit includes: whistle, pocket chain saw, water purifying tabs, compass, copper wire, flint and fire striker, LED light, 2.5 mts paracord and diamond-plate sharpener. The sheath holds the knife in open position. The kit is contained in a pocket fastened to the sheath by a MOLLE system.
€401.61

In stock

Tactical knife Extrema Ratio Contact C Wolf Grey
Fixed blade Knife Extrema Ratio Contact C Wolf Grey 12.8cm 04.1000.0216/WG
 Elegant and compact version of the CONTACT, the Contact C  Wolf Grey 04.1000.0216/WG from  Extrema Ratio has a Böhler N690 stainless steel spearpoint blade, hardened at 58 HRC with single branch handguard and full length fuller for lightness. The Forprene grip is affixed by a threaded tang that makes the knife sturdy and well balanced. The injection molded, impact grade nylon, M.O.L.L.E. compatible scabbard has a dampening system to avoid blade rattle, twin button safety loop and a retention safety disengaged by simple pressure on the trigger-like lever.
€175.81

In stock

Folding knife Extrema Ratio BD2 Contractor Desert 04.1000.0229/DW 9.4cm
Folding knife Extrema Ratio BD2 Contractor Desert 9.4cm 04.1000.0229/DW
Extrema Ratio BD2 Contractor is a double-edged semi-serrated desert tan colored folding knife with guard. In addition to protecting the users's hands, the guard also acts as a flipper, and the high-speed auxiliary knife opening system makes it easy to use. The BD2 Contractor perfectly combines the functionality of an everyday pocket knife with the elegance of classic Italian style. The streamlined blade is made of Böhler N690 cobalt steel, and the ergonomic handle uses anodized aluminum alloy.
€134.68

In stock

Tactical knife Extrema Ratio Misericordia Desert
Folding knife Extrema Ratio Frame Rock Titan Black 7.5cm 04.1000.0456/BLK/TIT
Extrema Ratio Frame Titan Black 04.1000.0456/BLK/TIT is a stylish folder with a titanium handle that offers high strength and at the same time a lightweight construction. The Extrema Ratio Frame Rock is a new knife, based on the design of the Ti-Rock, a successful framelock custom made knife that Extrema Ratio has realized for a renowned Italian distributor. Spear point blade 75 mm is made of high quality Bohler N690 steel, with black DLC treatmet finish. The handle is equipped with a pocket clip. Opening the blade is smooth and easy thanks to the bearings. This mechanism allows the user to adjust the force required to release the blade with the screw. Framelock. The knife weighs about 270 g. Made in Italy. It comes with a special ABS case.
€441.93

In stock

Folding knife Extrema Ratio BDØ R Wolf Grey
Folding knife Extrema Ratio BDØ R Wolf Grey 6cm 04.1000.0459/WG
Extrema Ratio BDØ R Wolf Grey 04.1000.0459/WG is a new and elegant knife designed for lightness. With an overall length of 5.7” (165 mm) and a weight of just  52 g the Extrema Ratio BDØ R is an extremely light and slim knife which makes it an ideal EDC choice. It is characterized by a very slim profile with a focus on lightness. The blade is made in Bohler N690 steel hardened to 58 HRC, 2.36” (60mm) long, 0.1” (2.5 mm) thick, with a plain sharpening and a faux edge on the first third of the spine. The blade is deployed by the usual “Razor” tang extension which enables effortless ambidextrous operation. A simple yet sturdy liner lock system holds the blade open. The reversible clip with lightening holes contributes to maintain the weight of the knife to a minimum. 
€73.39

In stock

Folding knife Extrema Ratio BDØ R HCS
Folding knife Extrema Ratio BDØ R HCS 6cm 04.1000.0459/HCS
BDØ R HCS 04.1000.0459/HCS from Extrema Ratio is a new knife designed for lightness. It is characterized by a very slim profile with a focus on lightness. The blade is made in Bohler N690 steel hardened to 58 HRC, 2.36” (60mm) long, 0.1” (2.5 mm) thick, with a plain sharpening and a faux edge on the first third of the spine. The blade is deployed by the usual “Razor” tang extension which enables effortless ambidextrous operation. A simple yet sturdy liner lock system holds the blade open. The reversible clip with lightening holes contributes to maintain the weight of the knife to a minimum. With an overall length of 5.7” (165 mm) and a weight of just  52 g the Extrema Ratio BDØ R is an extremely light and slim knife which makes it an ideal EDC choice.
€73.39

In stock

Folding knife Extrema Ratio BDØ R Ranger Green
Folding knife Extrema Ratio BDØ R Desert 6cm 04.1000.0459/GRN
Extrema Ratio BDØ R Ranger Green 04.1000.0459/GRN is a new knife designed for lightness. With an overall length of 5.7” (165 mm) and a weight of just  52 g the Extrema Ratio BDØ R is an extremely light and slim knife which makes it an ideal EDC choice. It is characterized by a very slim profile with a focus on lightness. The blade is made in Bohler N690 steel hardened to 58 HRC, 2.36” (60mm) long, 0.1” (2.5 mm) thick, with a plain sharpening and a faux edge on the first third of the spine. The blade is deployed by the usual “Razor” tang extension which enables effortless ambidextrous operation. A simple yet sturdy liner lock system holds the blade open. The reversible clip with lightening holes contributes to maintain the weight of the knife to a minimum. 
€73.39

In stock

Folding knife Extrema Ratio BDØ R Desert
Folding knife Extrema Ratio BD1 R 6cm 04.1000.0459/DW
Extrema Ratio BDØ R Desert 04.1000.0459/DW is a new knife designed for lightness. It is characterized by a very slim profile with a focus on lightness. The blade is made in Bohler N690 steel hardened to 58 HRC, 2.36” (60mm) long, 0.1” (2.5 mm) thick, with a plain sharpening and a faux edge on the first third of the spine. The blade is deployed by the usual “Razor” tang extension which enables effortless ambidextrous operation. A simple yet sturdy liner lock system holds the blade open. The reversible clip with lightening holes contributes to maintain the weight of the knife to a minimum. With an overall length of 5.7” (165 mm) and a weight of just  52 g the Extrema Ratio BDØ R is an extremely light and slim knife which makes it an ideal EDC choice.
€73.39

In stock

Folding knife Extrema Ratio MF2 Black
Folding knife Extrema Ratio MF2 Black 11.3cm 04.1000.0142/BLK
Tactical knife Extrema Ratio MF2 Black 04.1000.0142/BLK with a blade length of 11.3 cm. Model MF2 features twin guards, making the grip extremely stable and preventing any event of a user’s hand slipping onto the blade. The blade-mounted guard enables quick opening with the index finger. 
€295.97

In stock

Survival knife Extrema Ratio RAO Desert Warfare
Survival knife Extrema Ratio RAO Desert Warfare 11.9cm 04.1000.0141/DW
Tactical knife Extrema Ratio RAO Desert Warfare 04.1000.0141/DW with a blade length of 11.9 cm. In June 2006, the “185° Rgt. Ricognizione e Acquisizione Obiettivi” (Target Acquisition Regiment) airborne “FOLGORE” (185° RAO) entrusted to Extrema Ratio the development of a unique knife fitting the unit’s specific operational duties. This resulted in the RAO: not an oversized folder as much as a compact survival & field knife, with a heavy and dependable blade. Its very reliable locking system, assisted by an extra safety device, effectively turns this folder into a fixed blade knife. The opening and closing is to be performed with both hands in order to minimize the risk of self-inflicted injuries, as the blade, because of its weight, is a veritable guillotine. The extra safe device is a steel pin to be hand-screwed through two holes by the guard section of the massive Anticorodal aluminum handle – its presence between blade and hand also acting as a great psychological boon. The sheath is an essential part of this weapon system: it holds a diamond-plate sharpener and enables user to carry the knife either in open position, held in place by a cord and two clips, or closed, inside the front pocket. The sheath can be attached to tactical vests or common belts, being MOLLE system-compliant.
€335.48

In stock

Tactical knife Extrema Ratio Contact C Ranger Green
Fixed blade Knife Extrema Ratio Contact C Ranger Green 12.8cm 04.1000.0216/GRN
Compact and elegant version of the CONTACT, the Extrema Ratio Contact C Ranger Green 04.1000.0216/GRN has a Böhler N690 stainless steel spearpoint blade, hardened at 58 HRC with single branch handguard and full length fuller for lightness. The Forprene grip is affixed by a threaded tang that makes the knife sturdy and well balanced. The injection molded, impact grade nylon, M.O.L.L.E. compatible scabbard has a dampening system to avoid blade rattle, twin button safety loop and a retention safety disengaged by simple pressure on the trigger-like lever.
€160.48

In stock

Tactical knife Extrema Ratio Contact C Desert
Fixed blade Knife Extrema Ratio Contact C Desert 12.8cm 04.1000.0216/DW
Compact version of the CONTACT, the Contact C Desert 04.1000.0216/DW from Extrema Ratio has a Böhler N690 steel spearpoint blade, hardened at 58 HRC with single branch handguard and full length fuller for lightness. The Forprene grip is affixed by a threaded tang that makes the knife sturdy and well balanced. The injection molded, impact grade nylon, M.O.L.L.E. compatible scabbard has a dampening system to avoid blade rattle, twin button safety loop and a retention safety disengaged by simple pressure on the trigger-like lever.
€160.48

In stock

Tactical knife Extrema Ratio Fulcrum Desert Warfare
Fixed blade Knife Extrema Ratio Fulcrum Desert Warfare 18cm 04.1000.0082/DW
A versatile  and extremely tough knife Fulcrum Desert Warfare 04.1000.0082/DW, the Fulcrum’s blade can sustain loads of over 150 kilograms without breaking. The tanto-shaped blade allows for large amounts of work and wear while still retaining a sharp, penetrating edge at its exceedingly sturdy tip. Thanks to its weight and top-heavy balancing, the Fulcrum is also suitable for hard work on the field. 
This milestone among multipurpose knives, employed on a large scale in Afghanistan as standard issue equipment of the Italian “Nibbio” mission, originated with a COMALP Alpine Troops Command experimental project for renewing trooper equipment. As part of preparing for the mission, COMALP coordinated a team of companies toward creating a full experimental set of newly designed equipment for the individual trooper. Extrema Ratio was chosen by COMALP to develop a new multipurpose knife suitable for the infantry – a knife to be used in any operations anywhere, capable of successfully completing tasks that more specialized tools fail at.
€304.84

In stock

Tactical knife Extrema Ratio Fulcrum
Fixed blade Knife Extrema Ratio Fulcrum E.I. 18cm 04.1000.0082/BLK-EI
 An extremely tough and versatile knife Extrema Ratio Fulcrum E.I. 04.1000.0082/BLK-EI, the Fulcrum’s blade can sustain loads of over 150 kilograms without breaking. The tanto-shaped blade allows for large amounts of work and wear while still retaining a sharp, penetrating edge at its exceedingly sturdy tip. Thanks to its weight and top-heavy balancing, the Fulcrum is also suitable for hard work on the field. 
€287.90

In stock

Tactical knife Extrema Ratio Contact C Black
Fixed blade Knife Extrema Ratio Contact C Black 12.8cm 04.1000.0216/BLK
Compact version of the CONTACT, the Contact C Black 04.1000.0216/BLK  has a Böhler N690 steel spearpoint blade, hardened at 58 HRC with single branch handguard and full length fuller for lightness. The Forprene grip is affixed by a threaded tang that makes the knife sturdy and well balanced. The injection molded, impact grade nylon, M.O.L.L.E. compatible scabbard has a dampening system to avoid blade rattle, twin button safety loop and a retention safety disengaged by simple pressure on the trigger-like lever.
€172.58

In stock

Folding knife Extrema Ratio RAO II
Folding knife Extrema Ratio RAO II 11.9cm 04.1000.0136/BLK
The Extrema Ratio RAO II is a new version of the famous Extrema Ratio RAO knife; it comes with a new drop-point blade and an improved handle that is rounded at the top corners for a more ergonomic grip. The extra safety lock transforms the RAO II into a fixed blade knife for high performance without risk of injury. The sheath can hold the knife open for frequent use or closed in the front pocket. It comes with a diamond sharpener to always have a perfect cutting edge.
€311.29

In stock

Tactical knife Extrema Ratio 39-09 Ordinanza COFS
Fixed blade Knife Extrema Ratio 39-09 Ordinanza COFS 19.5cm 04.1000.0339/BLK-OR
Extrema Ration 39-09 Ordinanza is the result of a project sponsored by COFS (the inter-force operations command for Italian special forces) and its former Commander-in-chief, Gen. Bertolini. This combat knife 39-09 is a restyling of the Model 1939 “paracadutista assaltatore” (assault paratrooper) knife, a celebrated piece of Italian military history.
Small changes which make it a highly effective, dependable dagger. The included hard sheath is designed to be worn at the ankle, in the characteristic fashion of Italian paratroopers.
The 39-09 Ordinanza version has Forprene handle, black oxide-coated with COFS logo & motto. It comes in ABS engraved case with an ankle sheath and a parade belt sheath. Weight  338 g (11.9 oz)
€502.42

In stock

Tactical knife Extrema Ratio T4000 C Satin 04.1000.0434/SAT 10.4cm
Fixed blade Knife Extrema Ratio T4000 C Satin 10.4cm 04.1000.0434/SAT
The T4000 C Satin continues the purest Extrema Ratio tanto collection, for those who love Japanise profile blades but do not want to waive the typical tactical accessories like handle and sheath. The blade is durable Böhler N690 and the hadle is convenient forprene. 
€206.44

In stock

Folding knife Extrema Ratio BD4 Contractor Desert 04.1000.0498/DW 12.3cm
Folding knife Extrema Ratio BD4 Contractor Desert 12.3cm 04.1000.0498/DW
Extrema Ratio BD4 Contractor is a desert tan colored double-edged semi-serrated folding knife with a guard. The guard also acts as a flipper, and the high-speed auxiliary knife opening system makes it easy to use. The ergonomic handle uses anodized aluminum alloy and the stonewashed streamlined blade is made from Böhler N690 cobalt steel. The BD4 Contractor perfectly combines the elegance of classic Italian style with the functionality of an EDC folding knife.
€147.58

In stock

MyGoodKnife is official retailer of Extrema Ratio. Located in Prato, Italy, Extrema Ratio has been designing, manufacturing and selling high performance combat knives since 1997 enjoying a reputation for excellence that is unsurpassed in the military and tactical knife industry. Extrema Ratio prides itself in design, material and quality to deliver a high end product that meets the most severe mil-standards. The production based on modern cutting edge technology is combined with traditional craftsmanship and the result is the pinnacle of this synthesis. The Extrema Ratio design team uses the 3D system to design new models and create prototypes. Each knife design is then meticulously inspected and then field tested. At this point the finest materials are chosen for durability, function and beauty. Each knife is then hand assembled and hand finished and inspected by Extrema Ratio team of craftsmen. First class handwork and well-selected material have contributed to form the image of the Extrema Ratio trademark all over the world. Each knife that is manufactured at Extrema Ratio has measured up to the Company rigorous standards for quality and performance. The knives are the result of painstaking research and development. This is an Extrema Ratio hallmark. Extrema Ratio knives represent a real, solid value for the money.