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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.

New Arrivals
Popular Models

Satre F Nitrogen Outdoor

Satre F Nitrogen Black Yellow

Satre F Nitrogen Black Orange

Satre F Nitrogen Black Periwinkle

Satre F N690 Black Stonewashed

Search - Page 1/9 1-36 (300) items matched your search

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Numen Satin RAO Steel N690 Satre FX Nitrogen Orange Selvans Black, green sheath

Blade length: 8.27″Blade length: 3.43″Blade length: 3.74″Blade length: 6.1″

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

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BF2 V Stonewashed Harpoon F Evo Limited Edition MH-Stealth F.O.K. Nitrogen Outdoor

Blade length: 2.56″Blade length: 8.23″Blade length: 3.39″Blade length: 5.04″

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

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RAO Steel Nitrogen Satin Requiem EVO Dark Dicok TS MF1 EVO Drop Point Red Satin M390

Blade length: 3.43″Blade length: 4.57″Blade length: 3.19″Blade length: 3.74″

Blade material: NitrogenBlade material: MagnaCutBlade material: NitrogenBlade material: M390

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Resolza 12 Round Patch 85mm Brown Satre FX N690 Stonewashed Satre FX S600 Black

Blade length: 4.72″Blade length: 3.74″Blade length: 3.74″

Blade material: Böhler N690Blade material: Böhler N690Blade material: Böhler S600

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ANT SP Tactical Mud ANT SP Total Black Estrema Estrema Hammer

Blade length: 1.81″Blade length: 1.81″Blade length: 3.15″

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

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Folgore Verticale M390 Misericordia Black Misericordia Black Warfare Limited Edition Requiem

Blade length: 5.04″Blade length: 4.65″Blade length: 4.65″Blade length: 4.57″

Blade material: Böhler M390Blade material: Böhler N690Blade material: Böhler N690Blade material: Böhler N690

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Satre F N690 Black Satre Nitrogen Yellow Sethlans S600 Outdoor Vipera Total Black M390

Blade length: 2.83″Blade length: 2.76″Blade length: 4.21″Blade length: 4.57″

Blade material: Böhler N690Blade material: NitrogenBlade material: Böhler S600Blade material: M390

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Waki Machete ANT SP Ranger Green BD2 Contractor BD2 Lucky

Blade length: 11.69″Blade length: 1.81″Blade length: 3.7″Blade length: 3.78″

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

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BF2 BFK Zero Folgore Col Moschin Compact Contact

Blade length: 3.43″Blade length: 2.64″Blade length: 4.33″Blade length: 6.38″

Blade material: Böhler N690Blade material: VG-10Blade material: Böhler N690Blade 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 Steel N690

Extrema Ratio –
RAO Steel N690

Blade length: 3.43″

Blade material: N690

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Extrema Ratio - Satre FX Nitrogen Orange

Extrema Ratio –
Satre FX Nitrogen Orange

Blade length: 3.74″

Blade material: Nitrogen

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Extrema Ratio - Selvans Black, green sheath

Extrema Ratio –
Selvans Black, green sheath

Blade length: 6.1″

Blade material: Böhler N690

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Extrema Ratio - BF2 V Stonewashed

Extrema Ratio –
BF2 V Stonewashed

Blade length: 2.56″

Blade material: Böhler N690

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Extrema Ratio - Harpoon F Evo Limited Edition

Extrema Ratio –
Harpoon F Evo Limited Edition

Blade length: 8.23″

Blade material: Böhler N690

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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 - F.O.K. Nitrogen Outdoor

Extrema Ratio –
F.O.K. Nitrogen Outdoor

Blade length: 5.04″

Blade material: Nitrogen

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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 - Requiem EVO Dark

Extrema Ratio –
Requiem EVO Dark

Blade length: 4.57″

Blade material: MagnaCut

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Extrema Ratio - Dicok TS

Extrema Ratio –
Dicok TS

Blade length: 3.19″

Blade material: Nitrogen

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Extrema Ratio - MF1 EVO Drop Point Red Satin M390

Extrema Ratio –
MF1 EVO Drop Point Red Satin M390

Blade length: 3.74″

Blade material: M390

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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 - Round Patch 85mm Brown

Extrema Ratio –
Round Patch 85mm Brown

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Extrema Ratio - Satre FX N690 Stonewashed

Extrema Ratio –
Satre FX N690 Stonewashed

Blade length: 3.74″

Blade material: Böhler N690

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Extrema Ratio - Satre FX S600 Black

Extrema Ratio –
Satre FX S600 Black

Blade length: 3.74″

Blade material: Böhler S600

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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 SP Total Black

Extrema Ratio –
ANT SP Total Black

Blade length: 1.81″

Blade material: Böhler N690

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Extrema Ratio - Estrema

Extrema Ratio –
Estrema

Blade length: 3.15″

Blade material: Böhler N690

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Extrema Ratio - Estrema Hammer

Extrema Ratio –
Estrema Hammer

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Extrema Ratio - Folgore Verticale M390

Extrema Ratio –
Folgore Verticale M390

Blade length: 5.04″

Blade material: Böhler M390

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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 - Requiem

Extrema Ratio –
Requiem

Blade length: 4.57″

Blade material: Böhler N690

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Extrema Ratio - Satre F N690 Black

Extrema Ratio –
Satre F N690 Black

Blade length: 2.83″

Blade material: Böhler N690

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Extrema Ratio - Satre Nitrogen Yellow

Extrema Ratio –
Satre Nitrogen Yellow

Blade length: 2.76″

Blade material: Nitrogen

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Extrema Ratio - Sethlans S600 Outdoor

Extrema Ratio –
Sethlans S600 Outdoor

Blade length: 4.21″

Blade material: Böhler S600

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Extrema Ratio - Vipera Total Black M390

Extrema Ratio –
Vipera Total Black M390

Blade length: 4.57″

Blade material: M390

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Extrema Ratio - Waki Machete

Extrema Ratio –
Waki Machete

Blade length: 11.69″

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 - BD2 Contractor

Extrema Ratio –
BD2 Contractor

Blade length: 3.7″

Blade material: Böhler N690

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Extrema Ratio - BD2 Lucky

Extrema Ratio –
BD2 Lucky

Blade length: 3.78″

Blade material: Böhler N690

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Extrema Ratio - BF2

Extrema Ratio –
BF2

Blade length: 3.43″

Blade material: Böhler N690

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Extrema Ratio - BFK Zero Folgore

Extrema Ratio –
BFK Zero Folgore

Blade length: 2.64″

Blade material: VG-10

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Extrema Ratio - Col Moschin Compact

Extrema Ratio –
Col Moschin Compact

Blade length: 4.33″

Blade material: Böhler N690

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Extrema Ratio - Contact

Extrema Ratio –
Contact

Blade length: 6.38″

Blade material: Böhler N690

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