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Extrema Ratio knives and folding knives

Extrema Ratio, located in Prato, Italy has been designing, manufacturing and selling high-quality combat knives since 1997. The company gained a great reputation for excellence that is unsurpassed in the military and tactical industry. The company prides itself in design, material and quality to deliver a high end product that meets the most severe standards. The first class handwork and well-selected material have contributed to form the image of the Extrema Ratio trademark all over the world.

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Popular Models

Satre F Nitrogen Black Yellow

Satre F Nitrogen Black Orange

Satre F Nitrogen Black Periwinkle

Satre Nitrogen Yellow

Satre Nitrogen Orange

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Requiem EVO Dark Misericordia Black Misericordia Black Warfare Limited Edition Misericordia Desert

Blade length: 4.57″Blade length: 4.65″Blade length: 4.65″Blade length: 4.65″

Blade material: MagnaCutBlade material: Böhler N690Blade material: Böhler N690Blade material: Böhler N690

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Resolza 12 Forpene Handle, black Forpene handle, desert MH-Stealth

Blade length: 4.72″Blade length: 3.39″

Blade material: Böhler N690Blade material: Böhler N690

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N.K.3 K Numen Satin RAO C Outdoor S-THIL Black Warfare Special Edition

Blade length: 2.76″Blade length: 8.27″Blade length: 3.94″Blade length: 4.69″

Blade material: Böhler N690Blade material: Böhler N690Blade material: Böhler N690Blade material: Böhler N690

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ANT SP Ranger Green ANT SP Tactical Mud ANT Urban Neon SF Yellow BD2 Contractor

Blade length: 1.81″Blade length: 1.81″Blade length: 2.01″Blade length: 3.7″

Blade material: Böhler N690Blade material: Böhler N690Blade material: Böhler N690Blade material: Böhler N690

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BF2 Helmsman Col Moschin Contact C Diamond Pocket Sharpener

Blade length: 3.43″Blade length: 6.3″Blade length: 5.04″

Blade material: Böhler N690Blade material: Böhler N690Blade material: Böhler N690

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Dobermann IV Tactical Dual Grit Sharpener And Firesteel Pocket Kit Estrema Ferrum T Tactical Mud

Blade length: 7.17″Blade length: 3.15″Blade length: 2.87″

Blade material: Böhler N690Blade material: Böhler N690Blade material: Böhler N690

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Glauca G1 Kreios LKU01 Urban Dark LKU01 Urban Sideral

Blade length: 4.41″Blade length: 11.81″Blade length: 3.94″Blade length: 3.94″

Blade material: Böhler N690Blade material: Böhler N690Blade material: Böhler N690Blade material: Böhler N690

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MF1 EVO Drop Point Black Satin M390 MK2.1 Pugio RAO Steel Nitrogen Satin

Blade length: 3.74″Blade length: 6.97″Blade length: 4.33″Blade length: 3.43″

Blade material: M390Blade material: Böhler N690Blade material: Böhler N690Blade material: Nitrogen

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Scout 2 Selvans/Ontos sheath black Sethlans S600 Outdoor Shrapnel OG Stonewashed

Blade length: 4.65″Blade length: 4.21″Blade length: 4.33″

Blade material: Böhler N690Blade material: Böhler N690Blade material: Böhler N690

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Extrema Ratio - Requiem EVO Dark

Extrema Ratio –
Requiem EVO Dark

Blade length: 4.57″

Blade material: MagnaCut

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Extrema Ratio - Misericordia Black

Extrema Ratio –
Misericordia Black

Blade length: 4.65″

Blade material: Böhler N690

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Extrema Ratio - Misericordia Black Warfare Limited Edition

Extrema Ratio –
Misericordia Black Warfare Limited Edition

Blade length: 4.65″

Blade material: Böhler N690

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Extrema Ratio - Misericordia Desert

Extrema Ratio –
Misericordia Desert

Blade length: 4.65″

Blade material: Böhler N690

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Extrema Ratio - Resolza 12

Extrema Ratio –
Resolza 12

Blade length: 4.72″

Blade material: Böhler N690

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Extrema Ratio - Forpene Handle, black

Extrema Ratio –
Forpene Handle, black

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Extrema Ratio - Forpene handle, desert

Extrema Ratio –
Forpene handle, desert

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Extrema Ratio - MH-Stealth

Extrema Ratio –
MH-Stealth

Blade length: 3.39″

Blade material: Böhler N690

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Extrema Ratio - N.K.3 K

Extrema Ratio –
N.K.3 K

Blade length: 2.76″

Blade material: Böhler N690

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Extrema Ratio - Numen Satin

Extrema Ratio –
Numen Satin

Blade length: 8.27″

Blade material: Böhler N690

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Extrema Ratio - RAO C Outdoor

Extrema Ratio –
RAO C Outdoor

Blade length: 3.94″

Blade material: Böhler N690

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Extrema Ratio - S-THIL Black Warfare Special Edition

Extrema Ratio –
S-THIL Black Warfare Special Edition

Blade length: 4.69″

Blade material: Böhler N690

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Extrema Ratio - ANT SP Ranger Green

Extrema Ratio –
ANT SP Ranger Green

Blade length: 1.81″

Blade material: Böhler N690

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Extrema Ratio - ANT SP Tactical Mud

Extrema Ratio –
ANT SP Tactical Mud

Blade length: 1.81″

Blade material: Böhler N690

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Extrema Ratio - ANT Urban Neon SF Yellow

Extrema Ratio –
ANT Urban Neon SF Yellow

Blade length: 2.01″

Blade material: Böhler N690

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Extrema Ratio - BD2 Contractor

Extrema Ratio –
BD2 Contractor

Blade length: 3.7″

Blade material: Böhler N690

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Extrema Ratio - BF2 Helmsman

Extrema Ratio –
BF2 Helmsman

Blade length: 3.43″

Blade material: Böhler N690

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Extrema Ratio - Col Moschin

Extrema Ratio –
Col Moschin

Blade length: 6.3″

Blade material: Böhler N690

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Extrema Ratio - Contact C

Extrema Ratio –
Contact C

Blade length: 5.04″

Blade material: Böhler N690

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Extrema Ratio - Diamond Pocket Sharpener

Extrema Ratio –
Diamond Pocket Sharpener

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Extrema Ratio - Dobermann IV Tactical

Extrema Ratio –
Dobermann IV Tactical

Blade length: 7.17″

Blade material: Böhler N690

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Extrema Ratio - Dual Grit Sharpener And Firesteel Pocket Kit

Extrema Ratio –
Dual Grit Sharpener And Firesteel Pocket Kit

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Extrema Ratio - Estrema

Extrema Ratio –
Estrema

Blade length: 3.15″

Blade material: Böhler N690

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Extrema Ratio - Ferrum T Tactical Mud

Extrema Ratio –
Ferrum T Tactical Mud

Blade length: 2.87″

Blade material: Böhler N690

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Extrema Ratio - Glauca G1

Extrema Ratio –
Glauca G1

Blade length: 4.41″

Blade material: Böhler N690

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Extrema Ratio - Kreios

Extrema Ratio –
Kreios

Blade length: 11.81″

Blade material: Böhler N690

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Extrema Ratio - LKU01 Urban Dark

Extrema Ratio –
LKU01 Urban Dark

Blade length: 3.94″

Blade material: Böhler N690

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Extrema Ratio - LKU01 Urban Sideral

Extrema Ratio –
LKU01 Urban Sideral

Blade length: 3.94″

Blade material: Böhler N690

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Extrema Ratio - MF1 EVO Drop Point Black Satin M390

Extrema Ratio –
MF1 EVO Drop Point Black Satin M390

Blade length: 3.74″

Blade material: M390

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Extrema Ratio - MK2.1

Extrema Ratio –
MK2.1

Blade length: 6.97″

Blade material: Böhler N690

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Extrema Ratio - Pugio

Extrema Ratio –
Pugio

Blade length: 4.33″

Blade material: Böhler N690

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Extrema Ratio - RAO Steel Nitrogen Satin

Extrema Ratio –
RAO Steel Nitrogen Satin

Blade length: 3.43″

Blade material: Nitrogen

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Extrema Ratio - Scout 2

Extrema Ratio –
Scout 2

Blade length: 4.65″

Blade material: Böhler N690

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Extrema Ratio - Selvans/Ontos sheath black

Extrema Ratio –
Selvans/Ontos sheath black

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Extrema Ratio - Sethlans S600 Outdoor

Extrema Ratio –
Sethlans S600 Outdoor

Blade length: 4.21″

Blade material: Böhler N690

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Extrema Ratio - Shrapnel OG Stonewashed

Extrema Ratio –
Shrapnel OG Stonewashed

Blade length: 4.33″

Blade material: Böhler N690

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