Couteaux Extrema Ratio

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Cap Extrema Ratio Desert 04.5100.0132/HCS
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Casquette Extrema Ratio Desert 0451000132HCS
Extrema Ratio baseball cap with embroidered logo (not printed). One size. Desert color. 
29,03 €

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Couteau pliant Extrema Ratio MF0 T Black Ruvido 04.1000.0148/RVB 6.8cm
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Couteau pliant Extrema Ratio MF0 T Black Ruvido 6.8cm 04.1000.0148/RVB
MF0 Black T Ruvido is a smallest knife from Extrema Ratio MF series. MF stands for Medium Folder: a product line positioning itself between the BF (Basic Folder) and the Heavy Folder lines. MF knives employ the LINER-LOCK mechanism and are distinguished for their sturdiness; all are equipped with a glass-breaker. An innovative supplementary screw can be unlocked to enable fine-tuning of the main screw, adjusting opening speed to taste. Hemispheric milling marks on handles make it easier to change from saber-style to reverse grip. Clips are reversible. Model MF0 is “the little one” amongst MF knives – basically a compact version of the MF1. It retains all the characteristics of MF1 but has a downsized handle and shortened blade, similar to our SHRAPNEL “back-up” knife.
233,87 €

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Couteau pliant Extrema Ratio MF1 BC Desert Warfare 0410000134DW 9.2cm
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Couteau pliant Extrema Ratio MF1 BC Desert Warfare 9.2cm 0410000134DW
L'Extrema Ratio MF1 BC est un couteau pliant multifonction aux couleurs du désert. Le MF1 BC (« Belt Cutter ») est équipé d'un coupe-ceinture intégré au manche, dont la lame est facilement remplaçable. Il est également équipé d'un tournevis intégré pour le réglage de l'optique d'une arme à feu. Conçu spécifiquement pour les forces de l'ordre et les unités paramilitaires, ce couteau compact est également idéal pour un usage quotidien.
291,13 €

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Couteau pliant Extrema Ratio Resolza 10 Black 04.1000.0168/BLK 10cm
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Couteau pliant Extrema Ratio Resolza 10 Black 10cm 04.1000.0168/BLK
Extrema Ratio Resolza 10 is a folding knife that pays homage to centuries of Italian tradition. The traditional Sardinian resolza is one of the most famous knives in Italy. To this day, it is a constant companion of island farmers and shepherds in their daily work. The knife accompanied them even when people were called to war: in the chronicles of Sassari during the First World War, the knife is mentioned as part of soldiers' equipment. Resolza 10 is an attempt to redefine the traditional silhouette in accordance with the modern Extrema Ratio standards, so as not to overlook the Sardinian craftsmen, who still practice ingrained knife-making techniques and preserve ancient traditions. Resolza 10 retains its original dimensions and proportions, but is manufactured using high quality materials and modern company technologies. The handle has been redesigned, and the blade is more closely approximated to the traditional shape.
159,68 €

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Couteau pliant Extrema Ratio BD4 R Satin 0410000496SAT 12.2cm
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Couteau pliant Extrema Ratio BD4 R Satin 12.2cm 0410000496SAT
L'Extrema Ratio BD4 R est un couteau pliant basique doté d'une lame satinée. Son système d'ouverture auxiliaire ultra-rapide facilite son utilisation. Le BD4 R allie parfaitement l'élégance du style italien classique à la fonctionnalité d'un couteau pliant EDC. Sa lame est en acier autrichien Böhler N690 et son manche ergonomique est en aluminium anodisé.
142,74 €

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Couteau Tactiques et Militaires Extrema Ratio MK2.1 Black 04.1000.0128/BLK 17.7cm
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Couteau à lame fix Extrema Ratio MK2.1 Black 17.7cm 04.1000.0128/BLK
Extrema Ratio MK2.1 is a re-issue of the Mark 2 combat dagger, one of the most common knives during World War II. The aim was to preserve the characteristic properties of the original, making only those changes that would increase its effectiveness. The blade is made of Böhler N690 cobalt steel, the rest of the parts are made of AISI 303 and AISI 304, and the handle uses fiberglass-reinforced nylon instead of leather. The MK2.1 retains the ergonomics of the original Mark 2, while all of the frame parts have been enlarged to provide a robust, high-performance multi-tool. The most significant changes are aimed at eliminating the known "weak points" of the original knife: the ability to disassemble in the field without the tools, a straightened modified Bowie profile, which makes it easier to maintain the edge, and recesses on the handle that help to correctly orient the blade in the dark and increase the grip during rotational movements. Lanyard hole and front guard holes have also been added. The kit includes a standard hip-mount sheath.
325,81 €

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Couteau pliant Extrema Ratio MF0 D Black Rough 04.1000.0140/RVB 6.8cm
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Couteau pliant Extrema Ratio MF0 D Black Rough 6.8cm 04.1000.0140/RVB
Extrema Ratio MF0 D Black Rough folder is “the little one” amongst MF knives. Basically it is a compact version of the MF1. It retains all the characteristics of MF1 but has a downsized handle and shortened blade, similar to our SHRAPNEL “back-up” knife. This versione is produced with a rough handle for a better grip. The drop point blade 68 mm is made of Bohler N690 stainless steel (58HRC). Black aluminum handle. 
MF stands for Medium Folder: a product line positioning itself between the BF (Basic Folder) and the Heavy Folder lines. MF knives employ the LINER-LOCK mechanism and are distinguished for their sturdiness; all are equipped with a glass-breaker. An innovative supplementary screw can be unlocked to enable fine-tuning of the main screw, adjusting opening speed to taste. Hemispheric milling marks on handles make it easier to change from saber-style to reverse grip. Clips are reversible. Overall length 181 mm. Weight 139 g. Made in Italy.
233,87 €

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Couteau de Plongée Extrema Ratio Ultramarine with hole 04.1000.0320/BLK 15cm
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Couteau de Plongée Extrema Ratio Ultramarine with hole 15cm 04.1000.0320/BLK
Extrema Ratio ULTRAMARINE is an amphibious knife, carried around from underwater operation equipment (diving suit) to ground operation equipment (tactical vest). Can be shipped only inside EU. Two different versatile sheaths were therefore developed for it. The scuba sheath can be worn at the ankle, or its hard ABS section can be attached by two BELT-CLIPS to either the breathing apparatus or BCD belts. The land sheath (OPTIONAL, included on request) is MOLLE system compatible, designed to be attached to the tactical vest and carried inside a waterproof bag during underwater operations. All an operative has to do, if getting rid of his diving suit after landing, is to draw the knife from its ankle sheath and place it in the tactical vest sheath. Primary functions: field operations, underwater operations, emergency tool, survival and combat.
522,58 €

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Tactical knife Extrema Ratio Fulcrum C FH Black 11cm
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Couteau à lame fix Extrema Ratio Fulcrum C FH Black 11cm 04.1000.0110/BLK
FULCRUM C is the compact version of the FULCRUM, which it equals in robustness and sturdiness. Its downsized blade (only 4″ 1/3 long) and handle make it comfortable to carry and easily concealed. The included hard sheath can be worn vertically, horizontally or obliquely (at a 45° angle), and sports a single automatic pressure-activated security lock for quick, easier drawing and sheating. This makes the FULCRUM C an intuitive, rapid-use knife, ideally suited to emergencies or self-defense. The original version of the FULCRUM C comes with a 3.93in compact handle, the Full Handle version comes with a more comfortable 5in handle.
209,68 €

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Couteau Tactiques et Militaires Extrema Ratio Task C Black 04.1000.0085/BLK 11cm
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Couteau à lame fix Extrema Ratio Task C Black 11cm 04.1000.0085/BLK
Extrema Ratio Task Compact Black fixed knife in a compact size. The blade 110 mm (4.3 in) made of Böhler N690 steel, black burnishing finish. Handle Forprene with lanyard hole. Knife comes with hard belt sheath and BELT-CLIP. The sheath can be worn vertically, horizontally or obliquely (at a 45° angle). Overall length 214 mm (8.4 in). Weight 205 g (7.2 oz).
183,87 €

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Tactical knife Extrema Ratio Nimbus Operativo
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Couteau à lame fix Extrema Ratio Nimbus Operativo 14.1cm 04.1000.0240/BLK-OP
Extrema Ratio Nimbus Operativo is a modern version of the Second World War Italian Nimbus assault knife. The black blade 141 mm (5.55 in) is made of Böhler N690 steel. The black Forprene handle provides a comfortable grip. The total length of the Nimbus Operativo combat knife is 263 mm (10.35 in) Kydex sheath included. Weighs 203 g. (7.16 oz)
270,16 €

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Couteau Tactiques et Militaires Extrema Ratio Arditi 16.7cm
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Couteau à lame fix Extrema Ratio Arditi 16.7cm
Extrema Ratio Arditi is a modern version of the First World War Italian Arditi assault knife. The black blade 167 mm (6.57 in) is made of Böhler N690 steel. The sturdy black polymer handle provides a comfortable grip. The total length of the Arditi knife is 270 mm (10.62 in) Cordura sheath included. Weighs 224 g. (7.90 oz)
331,45 €

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Couteau pliant Extrema Ratio MF1 Desert Warfare 04.1000.0133DW 9.2cm
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Couteau pliant Extrema Ratio MF1 Desert Warfare 9.2cm 04.1000.0133DW
The Extrema Ratio MF1 BC is a tan-colored versatile folding knife with textured blade. Everything said about the MF line is also true for the MF1 model. The MF1 has a built-in screwdriver for adjusting the optics of firearms. The knife is designed specifically for use by law enforcement officers and paramilitary units, but due to its compactness, it is also perfect for everyday use.
283,06 €

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Folding knife Extrema Ratio MF0 D Desert Warfare 04.1000.0140/DW 6.8cm - 1
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Couteau pliant Extrema Ratio MF0 D Desert Warfare 6.8cm 04.1000.0140/DW
MF stands for Medium Folder: a product line positioning itself between the BF (Basic Folder) and the Heavy Folder lines. MF knives employ the LINER-LOCK mechanism and are distinguished for their sturdiness; all are equipped with a glass-breaker. An innovative supplementary screw can be unlocked to enable fine-tuning of the main screw, adjusting opening speed to taste. Hemispheric milling marks on handles make it easier to change from saber-style to reverse grip. Clips are reversible. Model MF0 is “the little one” amongst MF knives – basically a compact version of the MF1. It retains all the characteristics of MF1 but has a downsized handle and shortened blade, similar to our SHRAPNEL “back-up” knife. Available versions: MF0 BLACK, MF0 BLACK RUVIDO, MF0 DESERT WARFARE.
259,67 €

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Folding knife Extrema Ratio BF2 R CD Black 04.1000.0490/BLK 9cm - 1
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Couteau pliant Extrema Ratio BF2 R CD Black 9cm 04.1000.0490/BLK
BF2 R are folding knives especially suitable for professional use by military or police operatives. They keep all BF2 characteristics, improved with the new high speed Razor opening system. Available versions: BF2 R Classic Tanto BLACK, BF2 R Classic Tanto STONE WASHED, BF2 R Classic Tanto DESERT, BF2 R Classic Drop BLACK, BF2 R Classic Drop STONE WASHED, BF2 R Classic Drop DESERT.
157,26 €

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Folding knife Extrema Ratio BF0 CD SW 04.1000.0460/SW 5.5cm - 1
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Couteau pliant Extrema Ratio BF0 CD SW 5.5cm 04.1000.0460/SW
The new Extrema Ratio BF0 is the smallest among the Basic folders. Its handle produced in technopolymer makes it light and resistant, also thanks to its steel internal frame. The liner lock system enables to open and close it with one hand. It comes with drop blade and stone washed finishing. There are only best folding knives in MyGoodKnife's range.
67,73 €

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Cap Extrema Ratio ercap - 2
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Casquette Extrema Ratio Black 04.5100.0132/BLK
Extrema Ratio black baseball cap with embroidered logo (not printed). One size. 
29,84 €

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Folding knife Extrema Ratio MF2 Ordinanza mf2 10.7cm - 1
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Couteau pliant Extrema Ratio MF2 Ordinanza 10.7cm
This version of the MF2 was officially acquired by 9° regiment Col Moschin. The knives comes with engraved blade and regiment logo on one side of the handle, the other side shows "INCURSORI" logo.
312,90 €

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Couteau Tactiques et Militaires Extrema Ratio MK2.1 Desert Warefare 04.1000.0128/DW 16.9cm
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Couteau à lame fix Extrema Ratio MK2.1 Desert Warefare 16.9cm 04.1000.0128/DW
The restyling of a classical, a tribute to a veteran, one of the most distributed and used knives during World War II : MARK 2. It was produced in many versions by historical US knives manufacturers but always following the original specs given by the U.S. NAVY. It is the preferred tool among traditionalists who only trust “battle tested" knives. Throughout the years several manufacturers have tried to restyle this knife with little success. It is in fact the original model which is still favoured in the main catalogues. Extrema Ratio’s aim, in this ambitious project, is to keep the original characteristics while developing only functional changes to increase performance. Cobalt reinforced stainless steel is used for the blade, AISI 303 and AISI 304 are used for the other components. The rounded leather handle has been replaced with a fibre glass reinforced nylon handle. The ergonomics of the original knife has been left intact while all structural parts have been oversized to obtain a sturdy versatile knife. The most important changes have been made to solve the so called “weak spots” of the original version. 1.the possibility to disassemble the knife in the field without the need of tools; 2.the Bowie shape was straightened for easy sharpening; 3.the grooves in the “barrel” shaped handle help to find proper blade direction even in dark conditions; 4.the same grooves improve the grip during twisting movements Other small modifications were to add holes on the back tang to add a lanyard and on the front guard to tie the blade on a pole to be used as a spear. For purely estethical reasons the traditional bloodgroove has been “cowardly” replaced with the typical Extrema Ratio “side groove”. The original knife was perfect and no other modifications were needed. The first available versions will be the classic Extrema Ratio Black and the new Desert Warfare which will come with a special HCS coyote sheath specifically developed for SOF units. The black version comes with standard side sheath which includes automatic retention system, protective flap and is M.O.L.L.E. compatible.
358,06 €

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Tactical knife Extrema Ratio Col Moschin Black
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Couteau à lame fix Extrema Ratio Col Moschin Black 15cm 04.1000.0125/BLK
Commissioned and officially adopted in 2002 by the Ninth Rgt. Incursori "Col. Moschin", this model is the quintessence of a pure combat knife. Inspired by daggers with an asymmetric blade and straight but slightly orientated handle used by the Arditi, in whose footsteps the Col Moschin Regiment follows, it has been re-elaborated in a modern form, endowed with a double edged blade, (single for the civilian version), integral guards and a removable E.R.M.H. handle in Forprene. Both grindings are hollow grind razor sharp. The centre of gravity is towards the end of the handle, the point especially sharp, it is light, manageable and intuitive. Each new Incursore receives one, and each new Incursore is trained to use it in the best way.
320,97 €

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Les couteaux Extrema Ratio sont inclus dans le kit d'armement de nombreuses unités militaires spéciales d'Italie, de la police et des services de secours. Chaque modèle est développé avec le plus grand soin et subit une série de tests rigoureux avant d'être lancé en production. L'entreprise collabore avec l'Université de Pérouse, où les scientifiques mènent une série d'études pour déterminer l'ergonomie des produits Extrema Ratio et les méthodes pour les améliorer. Le bureau d'Extrema Ratio est situé à Prato, en Italie. Les couteaux tactiques et les couteaux ménagers Extrema Ratio se distinguent par une qualité irréprochable. La plupart des couteaux sont fabriqués en acier autrichien N690, réputé pour sa teneur élevée en molybdène et en cobalt et très résistant à la corrosion. Grâce à cela, l'acier N690 présente une résistance accrue et une bonne résistance aux charges d'impact.

Les couteaux Extrema Ratio les plus populaires sont Fulcrum, Col Moschin, RAO, Adra. Extrema Ratio produit également plusieurs gammes de couteaux pliants tactiques : BF (basic folder), MF (medium folder), séries BD4, BD2 et autres couteaux. MyGoodKnife est le distributeur officiel d'Extrema Ratio.