Extrema Ratio Knives

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Folding knife Extrema Ratio Ant SP Ranger Stone Washed Green 041000469SWGRN 5.1cm
-10% New
Folding knife Extrema Ratio Ant SP Ranger Stone Washed Green 5.1cm 041000469SWGRN
The Extrema Ratio ANT SP is designed to operate in any conditions while remaining undetected. The spearpoint blade, just 5 cm long, is crafted from Bohler N690 steel with a stonewashed finish. The durable, tactical green handle is made of anodized aluminum. Weighing only 44 grams, the Extrema Ratio ANT SP knife features a pocket clip and lanyard hole, making it easy to carry—in your pocket, backpack, or on your gear.
€89.64
€99.60

In stock

Folding knife Extrema Ratio Ant Urban Neon SF Yellow Black 041000471BLKYL 5.1cm
-10% New
Folding knife Extrema Ratio Ant Urban Neon SF Yellow Black 5.1cm 041000471BLKYL
The Extrema Ratio Ant Urban Neon is a folding knife that breaks the monotony of the city. Live in color where others live in gray. The vibrant yellow handle is crafted from anodized aluminum. The black steel blade has a DLC (diamond-like carbon) coating. The Extrema Ratio Ant Urban Neon features a clip and lanyard hole. It also features a frame lock.
€96.81
€107.57

In stock

Folding knife Extrema Ratio Ant Urban SF Black Satin 041000471SATBLK 5.1cm
-10% New
Folding knife Extrema Ratio Ant Urban SF Black Satin 5.1cm 041000471SATBLK
The Extrema Ratio Ant Urban SF knife features a black aluminum handle. This lightweight folding knife weighs just 44 grams and is ideal for everyday use. Its clip makes it easy to carry in your pocket, and the lanyard hole allows for a lanyard. The 5 cm long sheepskin blade is crafted from Bohler N690 steel and has a satin finish.
€86.06
€95.62

In stock

Folding knife Extrema Ratio Ant Urban SF Cherry Satin 041000471SATBCY 5.1cm
-10% New
Folding knife Extrema Ratio Ant Urban SF Cherry Satin 5.1cm 041000471SATBCY
The compact Extrema Ratio Ant Urban EDC knife is designed for urban use. Its sheepskin blade, just 5 cm long, is perfect for everyday tasks. The blade is crafted from Bohler N690 steel. The handle is cherry-colored aluminum. For easy carrying, the Extrema Ratio Ant Urban features a lanyard hole and a pocket clip. It weighs 44 g.
€91.79
€101.99

In stock

Diving knife Extrema Ratio Dicok 04.1000.0318/BLK 8.1cm
-10% New
Diving knife Extrema Ratio Dicok 8.1cm 04.1000.0318/BLK
DICOK - Diving Compact Knife This diving knife has been designed together with experts in diving sector. It has got a suitable size to be easily used in water environment. This is to offer a working tool and an essential part of underwater equipment. The blade is made out of stainless steel with chemical burnishing process which makes it highly resistant to corrosion.It is highly resistant to keep the sharpening edge and to flexing. It is planned to be used as a lever thanks to its cut tip, and to cut nets, ropes and fabrics thanks to the serration on the blade.Nylon fabrics and polyester tapes together with a anti-slip rubber membrane form the soft part of the sheath. The hard part is in Kydex.The sheath is designed to allow multiple mounting both to the equipment and to the body of the user. The handle is in nylon loaded with glass fibers and it presents an anti-slip finishing which makes the handle ergonomic and perfectly fitting both the glove and the bare hand of user. This enables both precision and strength works. On the sheath an anti-panic opening system has been planned which enables a quick release of the knife by simply pulling, avoiding to act on the retaining buckle.
€186.45
€207.17

In stock

Fixed blade Knife Extrema Ratio Requiem EVO Dark 0410000475MGCBLKBLK 11.6cm
-10%
Fixed blade Knife Extrema Ratio Requiem EVO Dark 11.6cm 0410000475MGCBLKBLK
The REQUIEM EVO DARK is a limited edition knife of just 250 pieces. Its full-tang design adds strength and balance. Black G10 scales with a futuristic CNC design emphasize its modern character. The blade is crafted from Magnacut steel, which combines corrosion resistance, high hardness, sharpness, and resistance to stress. Compact and aggressive in spirit, the REQUIEM EVO DARK is equally at home in gear and in everyday use. The kit includes two sheaths for different scenarios: the Aspis, for concealed everyday carry, quick draw, and comfortable use in the urban environment; and the Kydex, a modular tactical system compatible with MOLLE, Ulticlip, Belt Clip, paracord, and other configurations. Weight: 135g. The knife comes in premium packaging with a numbered metal plate confirming its exclusivity.
€316.25
€351.39

In stock

Fixed blade Knife Extrema Ratio RAO Steel N690 Dark Stone 0410000221BLKSW 8.7cm
-10%
Fixed blade Knife Extrema Ratio RAO Steel N690 Dark Stone 8.7cm 0410000221BLKSW
The Extrema Ratio RAO STEEL is a robust, compact outdoor knife. It's ideal for hiking, camping, survival, and other outdoor activities. Its 5mm fixed blade is ready for any challenge. The design is based on the renowned RAO folding knife. As a fixed blade knife, the Extrema Ratio RAO STEEL is designed for active use in the field, in the wilderness, and for any outdoor task. It's made of Böhler N690 steel (58 HRC) with MIL-C-13924 treatment and a stonewashed finish. The knife features a lanyard hole and a caides sheath with a belt clip.
€154.18
€171.31

In stock

Folding knife Extrema Ratio RAO Black 04.1000.0141/BLK 11.9cm
-10%
Folding knife Extrema Ratio RAO Black 11.9cm 04.1000.0141/BLK
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.
€301.21
€334.68

In stock

Hunting and Outdoor knife Extrema Ratio Venatus F Black Satin 0410000089SATBLK 11.9cm
-10%
Fixed blade Knife Extrema Ratio Venatus F Black Satin 11.9cm 0410000089SATBLK
VENATUS F Black satin is a new hunting knife from the Italian manufacturer Extrema Ratio. This is the first hunting series created for those who perceive hunting not as entertainment, but as an ancient language of observation, patience and respect. This version of the VENATUS knife is equipped with a blade made of Böhler N690 steel. Satin finish of the blade. Comfortable, ergonomic handle with G10 overlays. Each VENATUS knife comes with a leather sheath made with the same care as the blade itself. But it is not only about aesthetics: it is a technical element designed to adapt to the body and movements of the hunter. This is the first symmetrical modular leather sheath, allowing for different carrying options: vertical attachment to the belt or thigh, or horizontal carrying using the detachable back strap.
€182.87
€203.19

Shipping after 10-20 business days

Dagger Extrema Ratio Herring NE 04.1000.0319/BL-OR-N 16.7cm
-10%
Fixed blade Knife Extrema Ratio Herring NE 16.7cm 04.1000.0319/BL-OR-N
Extrema Ratio Herring is one of the fan favorite military daggers. The dagger that entered the history of Italy during the World War II, thanks to the deeds of the young soldiers of the 1st Reconnaissance Squadron Folgore, armed with this weapon during Operation Herring. Extrema Ratio wanted to pay homage to this dagger while retaining the original design using most modern production techniques. The unique handcrafted finish on the handle mimics the aging of brass and gives the dagger a vintage look. The Herring NE version has an unsharpened cutting edge, which allows you to safely store this dagger.
€417.34
€463.71

In stock

Folding knife Extrema Ratio Ant Black Stone Washed
-10%
Folding knife Extrema Ratio Ant Black Stone Washed 5cm 041000467SWBLK
Extrema Ratio Ant is a small Every Day Carry folding knife. It has just 5 cm blade made of Bohler N690 steel. This version of Extrema Ratio Ant has black handle scales and Stone Washed blade. Knife has a pocket clip for ease of carrying. The sheepsfoot blade of Ant pocket knife is equipped with a small slot on the top to facilitate opening.
€87.49
€97.21

In stock

Folding knife Extrema Ratio T911 Rescue 0410000164SW-RED 7.6cm
-10%
Folding knife Extrema Ratio T911 Rescue 7.6cm 0410000164SW-RED
The T911 RESCUE is an updated version of the T911 folding knife, designed for quick and effective response in emergency situations. The knife is equipped with a bright visible red aluminum handle. The blade of the modified Spear Point profile has a serrated base. This allows you to quickly cut ropes and other durable materials. The blade is made of heat-treated Böhler N690 steel with a Stone Washed coating. The T911 RESCUE is a true multi-functional tool designed for emergency situations. The handle includes a rope cutter with an easily accessible and replaceable blade, a glass breaker, spike and a screw driver.
€268.92
€298.80

In stock

Folding knife Extrema Ratio MF1 Evo SP Black M390 0410000233M3BLKB 9.5cm
-10%
Folding knife Extrema Ratio MF1 Evo SP Black M390 9.5cm
Extrema Ratio MF1 EVO SP is equipped with a Spear Point blade made of Böhler M390 steel. The handle is made of anodized aluminum, resistant to all weather conditions and rust. The blade locking mechanism Liner lock is additionally supported by the new generation safety system "HIDDEN LOCK". The weight of Extrema ratio MF1 Evo SP Black M390 is 185 g.
€235.22
€261.35

In stock

Folding knife Extrema Ratio MF1 Evo D Tactical Grey 04.1000.0232/BLK/GRY 9.5cm
-10%
Folding knife Extrema Ratio MF1 Evo D Tactical Grey 9.5cm 04.1000.0232/BLK/GRY
Extrema Ratio MF1 Evo D Tactical Grey is equipped with a blade made of Bohler N690 steel. The blade length is 95 mm. The Tactical Grey handle consists of two finely processed anodized aluminum plates. A double-sided steel clip allows you to hide the knife in your pocket. The Extrema Ratio MF1 Evo D blade locking mechanism is LINER-LOCK, supported by the new generation security system "HIDDEN LOCK".
€199.36
€221.51

In stock

Folding knife Extrema Ratio LKU01 Urban Dark 10cm
-10%
Folding knife Extrema Ratio LKU01 Urban Dark 10cm
Extrema Ratio LKU01 URBAN Dark is a folding knife that combines Italian elegance and combat strategy. It has the 58 HRC hardened Böhler N690 steel blade and the anticorodal aluminium handle scales. The clip, made of stainless steel, is removable and reversible to ensure ambidextrous use. Extrema Ratio LKU01 URBAN Dark weights 123 g. 
€164.22
€182.47

In stock

Folding knife Extrema Ratio MF1 Evo SP Tactical Mud 0410000233BLKTM 9.5cm
-10%
Folding knife Extrema Ratio MF1 Evo SP Tactical Mud 9.5cm 0410000233BLKTM
MF1 EVO SP Tactical Mud has a tactical mud handle and burnished Böhler N690 steel (58HRC). Spear Point blade. MF1 Evo is the evolution of Extrema Ratio MF1 knives series. The blade locking mechanism is the LINER-LOCK, supported by a new generation safety system “HIDDEN LOCK”. MF1 EVO SP Tactical Mud weights 187 g.  The handle is composed of two finely machined anodized aluminum scales.
€200.80
€223.11

In stock

Folding knife Extrema Ratio MF1 Evo D Black 0410000232BLKBLK 9.5cm
-10%
Folding knife Extrema Ratio MF1 Evo D Black 9.5cm 0410000232BLKBLK
MF1 Evo is the evolution of Extrema Ratio MF1 knives series. This version has a black blade made ob Bohler N690 steel hardened to 58 HRC. Extrema Ratio MF1 Evo Black weights 187 g.  The handle is composed of two finely machined anodized aluminum scales. The grip is equipped with a hard metal rear glass-breaker. The blade locking mechanism is the LINER-LOCK, supported by a new generation safety system “HIDDEN LOCK”.
€199.36
€221.51

In stock

Karambit knife Extrema Ratio K-Talon Dark Stone x Svechnikov Workshop 0410000224DKS 7cm
-10%
Fixed blade Knife Extrema Ratio K-Talon Dark Stone x Svechnikov Workshop 7cm 0410000224DKS
The Extrema Ratio K-Talon Dark Stone  is a fixed-blade karambit with a full-tang structure. It has a particularly thin shape with a thickness of only 10 mm including sheath and scales. The curved and hooked blade was inspired by the shape of a talon. It is designed to make clear and deep cuts as well as to hook, seize and/or tear. The ring in the back is built to gain a safe and firm grip in every situation. This way the knife does not slip and it makes it extremely difficult to disarm and point at the user.The very thin Kydex sheath has a quick release system and comes with a paracord that allows it to be worn as a neck knife and to be attached to the M.O.L.L.E. system. Custom handle is made of solid Walnut wood by Svechnikov Workshop. The set also includes original handle pads.
€263.19
€292.43

In stock

Folding knife Extrema Ratio Ant Black 041000467BLKBLK 5cm
-10%
Folding knife Extrema Ratio Ant Black 5cm 041000467BLKBLK
Total black version of the Extrema Ratio Ant smallest EDC knife. This folding knife has 5 cm "sheepfoot" blade made of Bohler N690 steel. For easy carring Extrema Ratio Ant has a lanyard hole and a pocket clip. Pocket knife Ant is equipped with a small slot on the top to facilitate opening.
€91.79
€101.99

In stock

Folding knife Extrema Ratio BF2 CT Stone Washed 04.1000.0146/SW 8.7cm
-10%
Folding knife Extrema Ratio BF2 CT Stone Washed 8.7cm 04.1000.0146/SW
Extrema Ratio BF2 CT is full sized folding knife with stone washed blade. The 87 mm blade is made of high quality Bohler N690 steel. The handle of Extrema Ratio BF CT knife has an aluminium scales. Knife has a secondary blocking system. Weight is 142 g.
€154.18
€171.31

In stock

Folding knife Extrema Ratio Caimano Nero 04.1000.0229/BLK 9.3cm
-10%
Folding knife Extrema Ratio Caimano Nero 9.3cm 0410000169BLK
The Caimano Nero is a tactical knife delivered to the G.O.I., Gruppo Operativo Incursori (Operational Raiders Group) of the Italian Navy, and designed by Extrema Ratio, official COMSUBIN supplier. Its name is a reference and a tribute to the heroic Caimani Neri del Piave (Black Caimans of the Piave river), a unit of the Arditi della Regia Marina (Italian Royal Navy), who used to swim across the Piave river to carry out raids on enemy territory during the First World War. It is an automatic knife with a 4 mm asymmetrical spearpoint blade and a partial sharp false edge to improve the coefficient of penetration. The serrated part of the edge allow to cut highly-resistent cables and fabrics without losing its sharpening. It is a medium folder with a robust structure. It is light and balanced thanks to numerous removal processes applied to its highly-thick aluminum handle scales. The pommel, which recalls the shape of the tail/propel section of the Siluro a lenta corsa (S.L.C.), is designed to improve a rapid extraction of the knife from the pocket. The DLC-coated titanium clip can be positioned in three different angles on both sides to allow maximum customization while wearing it. Its shape is designed to conceal the handle sticking out of the pocket. The automatic blade release system guarantees a complete opening even in the event of accidental impacts during the opening rotation. Among its features, it is equipped with an hard-metal glass breaker and a lock, which prevents the blade from dangerously closing by accident.
€304.78
€338.65

In stock

Fixed blade Knife Extrema Ratio Fat Boy Dark Stone x Svechnikov Workshop 0410000107OKS-BLKSV 21cm
-10%
Fixed blade Knife Extrema Ratio Fat Boy Dark Stone x Svechnikov Workshop 21cm 0410000107OKS-BLKSV
Exclusive! New amazing Extrema Ratio Fat Boy Dark Stone knife. It has 21 cm length blade made of N690 steel with a thickness of 8.6 mm. Weight of Extrema Ratio Fat Boy is 1 kg. Thanks to its generous size, Fat Boy is ideal for all heavy tasks. Custom handle is made of Scandinavian birch by Svechnikov Workshop. The set also includes original G10 handle pads. Fat Boy knife is equipped with a black Cordura sheath with MOLLE system. 
€608.84
€676.49

In stock

Extrema Ratio Versa Expeditions 0410000214EXP 8cm
-10%
Extrema Ratio Versa Expeditions 8cm 0410000214EXP
Extrema Ratio Versa Expeditions is suitable as outdoor, survival and bushcraft knife. Versa has a full tang construction made of Bohler N690 steel with dark stone finish. 80 mm blade has a tanto profile. Weight is 110 g. Extrema Ratio Versa comes with kydex sheath.
€149.16
€165.74

In stock

Fixed blade Knife Extrema Ratio S-THIL Black Warfare 0410000223BWSE 11.9cm
-10%
Fixed blade Knife Extrema Ratio S-THIL Black Warfare 11.9cm 0410000223BWSE
Extrema Ratio S-THIL Black Warfare is a special version of the S-THIL model. Knife is made from a single piece of 5 mm thick BOHLER N690 steel, developed in collaboration with the designer Thilo Arnd Schiller. The spear point type blade. The special Black Warfare version of Extrema Ratio S-THIL uses the innovative and original Geotech Camo pattern, created by laser engraving.
€235.93
€262.15

In stock

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.