Extrema Ratio Knives

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Fixed blade Knife Extrema Ratio Selvans Desert no Kit
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Fixed blade Knife Extrema Ratio Selvans Desert no Kit 16cm 0410000129BLK-DNK
The Selvans Desert was developed as a cooperation between Extrema Ratio and the Master Advanced Instructor Daniele Dal Canto. It’s a modification of the ONTOS – a military survival knife – designed to enhance its effectiveness as a civilian tool. A longer handle and a heavier blade enable enhanced chopping and cutting action. 
€362.10

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Fixed blade Knife Extrema Ratio Selvans Expeditions
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Fixed blade Knife Extrema Ratio Selvans Expeditions 16cm 0410000129EXP
This reliable, tactical knife Extrema Ratio Selvans Expeditions is extremely versatile and strong. The blade is made of  Böhler N690 steel, covered with Black Oxide MIL-C-13924. The handle is made of Thermoplastic Elastomer. This material has a good abrasion resistance and high thermal and electric insulation values. Included fire stick. It comes with a MOLLE compatible Cordura sheath with leg strap. 
€342.74

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Fixed blade Knife Extrema Ratio Satre S600 Black 0410000222BLKS6 6.8cm
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Fixed blade Knife Extrema Ratio Satre S600 Black 6.8cm 0410000222BLKS6
The Extrema Ratio Satre S600 Black is a pocket-sized, light and extremely resistant fixed blade knife. Given its characteristics, it can be employed in a large variety of activities and fields, including survival and bushcraft, or it can be part of an EDC. It was designed in collaboration with Daniele Dal Canto, a Master Advanced F.I.S.S.S. instructor (Italian Federation of Sport and Experimental Survival). It can be worn as a neck knife thanks to its Paracord 550 lanyard.  The pre-shaped Kydex sheath has eyelets, allowing to apply both lanyard and accessory holder. This allows to clip the sheath together with not only belts, but also pockets, trousers, jackets, shirts and t-shirts. ULTICLIP gives the possibility to position the knife both vertically and horizontally and allows a more accessible use for left and right handed. The full-tang skeletonized structure allows the customization of the knife by using the Paracord as an handle cover. This Satre is made with Böhler S600 steel, which is thermally and cryogenically treated in order to obtain an exceptional hardness of 64 HRC. This material was chosen for its resistance to oxidation, for the durability of its edge and especially for its reliability, which has been proven over the years. 
€128.23

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Fixed blade Knife Extrema Ratio Satre Black 0410000222BLK 6.8cm
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Fixed blade Knife Extrema Ratio Satre Black 6.8cm 0410000222BLK
 The Extrema Ratio Satre Black is a pocket-sized, light and extremely resistant fixed blade knife. Given its characteristics, it can be employed in a large variety of activities and fields, including survival and bushcraft, or it can be part of an EDC. It was designed in collaboration with Daniele Dal Canto, a Master Advanced F.I.S.S.S. instructor (Italian Federation of Sport and Experimental Survival). It can be worn as a neck knife thanks to its Paracord 550 lanyard.  The pre-shaped Kydex sheath has eyelets, allowing to apply both lanyard and accessory holder. This allows to clip the sheath together with not only belts, but also pockets, trousers, jackets, shirts and t-shirts. ULTICLIP gives the possibility to position the knife both vertically and horizontally and allows a more accessible use for left and right handed. The full-tang skeletonized structure allows the customization of the knife by using the Paracord as an handle cover. Satre is made with heat-treated Böhler N690 steel at 58 HRC. This material was chosen for its resistance to oxidation, for the durability of its edge and especially for its reliability, which has been proven over the years. 
€116.94

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Cap Extrema Ratio Desert 04.5100.0132/HCS
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Cap Extrema Ratio Desert 0451000132HCS
Extrema Ratio baseball cap with embroidered logo (not printed). One size. Desert color. 
€29.03

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Folding knife Extrema Ratio Nemesis 04.1000.0154/BLK 11.5cm
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Folding knife Extrema Ratio Nemesis 11.5cm 04.1000.0154/BLK
Extrema Ratio Nemesis is a functional black self-defense folding knife. The design of this knife is similar to the M.P.C. model, but with a greater emphasis on defense. The blade is rather thick, strong and sharply sharpened. The front guard prevents the hand from slipping onto the blade. The long handle protrudes from the hand, allowing the knife to be used for non-lethal blows. The safety lock holds the lever of the Lockback mechanism, preventing accidental unlocking of the blade during heavy use. It can also be used to lock the knife in the closed state in case it was taken from the owner: then the Nemesis cannot be opened, even if the mechanism is irretrievably damaged. The hardened steel tip can be effectively used as glass-breaker. There is a lanyard hole on the handle. Extrema Ratio Nemesis is a knife with a pronounced Italian character.
€347.58

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Folding knife Extrema Ratio Resolza 10 Black 04.1000.0168/BLK 10cm
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Folding knife 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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Folding knife Extrema Ratio BD4 R Black 04.1000.0496/BLK 12.2cm
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Folding knife Extrema Ratio BD4 R Black 12.2cm 04.1000.0496/BLK
Extrema Ratio BD4 R is a basic folding knife made in full black. The BD4 R perfectly combines the elegance of classic Italian style with the functionality of a folding knife for every day. The high-speed auxiliary knife opening system makes it easier to use. The streamlined blade is made of Böhler N690 cobalt steel, and the ergonomic handle uses anodized aluminum alloy.
€134.68

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Tactical knife Extrema Ratio MK2.1 Black 04.1000.0128/BLK 17.7cm
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Fixed blade Knife 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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Folding knife Extrema Ratio HF2 T Black 04.1000.0452/BLK 12.4cm
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Folding knife Extrema Ratio HF2 T Black 12.4cm 04.1000.0452/BLK
Extrema Ratio HF2 tanto version. Extrema Ratio HF2 folding knife is projected for those who are looking for sturdiness and reliability of a fixed blade but also for compact sizes. Its N690 steel blade is available with Drop or Tanto point. For standard use the well known liner lock is enough safe. In case of hard extreme works it is requested to insert the steel pin in the proper hole to cross the handle and the blade, obtaining in this way a sturdy and reliable knife as much as a fixed blade. The steel clip can be removed or even placed on the opposite site of the handle by replacing it with the second supplied clip. It comes in four different versions: HF2 D BLACK, HF2 D DESERT WARFARE, HF2 T BLACK, HF2 T DESERT WARFARE.
€307.26

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Folding knife Extrema Ratio MF0 D Black Rough 04.1000.0140/RVB 6.8cm
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Folding knife 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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Diving knife Extrema Ratio Ultramarine Con Asola 04.1000.0320
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Diving knife Extrema Ratio Ultramarine Con Asola 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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Folding knife Extrema Ratio HF2 D Black 04.1000.0450/BLK 12.4cm
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Folding knife Extrema Ratio HF2 D Black 12.4cm 04.1000.0450/BLK
Extrema Ratio HF2 folding knife is projected for those who are looking for sturdiness and reliability of a fixed blade but also for compact sizes. Its N690 steel blade is available with Drop or Tanto point. For standard use the well known liner lock is enough safe. In case of hard extreme works it is requested to insert the steel pin in the proper hole to cross the handle and the blade, obtaining in this way a sturdy and reliable knife as much as a fixed blade. The steel clip can be removed or even placed on the opposite site of the handle by replacing it with the second supplied clip. It comes in four different versions: HF2 D BLACK, HF2 D DESERT WARFARE, HF2 T BLACK, HF2 T DESERT WARFARE
€307.26

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Folding knife Extrema Ratio BF2 R CD Desert 04.1000.0490/SWD 9cm
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Folding knife Extrema Ratio BF2 R CD Desert 9cm 04.1000.0490/SWD
Folding knife Extrema Ratio BF2 R CD Desert version. 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.
€155.65

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Tactical knife Extrema Ratio Nimbus Operativo
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Fixed blade Knife 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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Folding knife Extrema Ratio MF1 Desert Warfare 04.1000.0133DW 9.2cm
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Folding knife 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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Folding knife 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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Folding knife 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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Folding knife 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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Folding knife Extrema Ratio MF2 Ordinanza mf2 10.7cm - 1
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Folding knife 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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Diving knife Extrema Ratio M1A1 Stonewashed 04.1000.0161/SW 7cm - 1
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Diving knife Extrema Ratio M1A1 Stonewashed 7cm 04.1000.0161/SW
The BF M1A1 (basic folder series) is Extrema Ratio’s first foray into small form factor pocket tools. The knife features three main tools: a drop point blade, marlin spike and a multi-tool that has a bottle opener, can opener and flat head screwdriver. The blade and multi-tool are held open via independent liner locks and the marlin spike by a slip joint.
€137.10

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Extrema Ratio knives are a part of equipment of many special military units of Italy, the police and rescue services. Each model is developed very carefully and undergoes a series of rigorous tests before it is put into production. Extrema Ratio cooperates with the University of Perugia, where scientists conduct a number of studies determining the ergonomics of Extrema Ratio products and methods for improving it. The office of Extrema Ratio is located in Prato, Italy. Both Extreme Ratio tactical knives and EDC knives are distinguished by impeccable quality. Most knives are made of Austrian steel N690, which is famous for its high content of molybdenum and cobalt and is highly corrosion resistant. Due to this, N690 steel has increased strength and resists shock loads well. The most popular Extrema Ratio knives are Fulcrum, Col Moschin, RAO, Adra and others. Extrema Ratio also produces several lines of tactical folding knives: BF (basic folder), MF (medium folder), BD4, BD2 series and other knives. In our store you can buy Extrema Ratio tactical knives, as well as folding and EDC knives of this brand. MyGoodKnife is the official distributor of Extrema Ratio.