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Extrema Ratio

Extrema Ratio

Extrema Ratio, located in Prato, Italy, has been designing, manufacturing and selling high performance combat knives since 1997 enjoying a reputation for excellence that is unsurpassed in the military and tactical knife industry.

The increased capacity through the years enabled Extrema Ratio to extend its operations. As part of this effort, the company moved in 2004 to a new 600 square meter facility in order to meet the market demand and the company quickly established itself as one of the country's leading cutlery manufacturers.

Extrema Ratio serves military and law enforcement communities as well as commercial markets and the knives are well known and sought after all over the globe.

The company prides itself in design, material and quality to deliver a high end product that meets the most severe mil-standards.

The production based on modern cutting edge technology is combined with traditional craftsmanship and the result is the pinnacle of this synthesis. The Extrema Ratio design team uses the 3D system to design new models and create prototypes. Each knife design is then meticulously inspected and then field tested. At this point the finest materials are chosen for durability, function and beauty. Each knife is then hand assembled and hand finished and inspected by Extrema Ratio team of craftsmen.

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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  • ExtremaRatio - 185° RAO - nuova versione 2018 - coltello

    ExtremaRatio - Couteau 185 ° RAO - COLLECTION PRIVÉE - couteau

    299,00 €

    Article code: ER-RAO-CP

  • ExtremaRatio - Shrapnel OG Testudo - coltello

    ExtremaRatio - T4000 C Satin - Couteau

    245,00 €

    Article code: ER-T4C-SA

  • ExtremaRatio - Pugio SE Black - Filo Singolo - coltello

    ExtremaRatio - Ermes - Operativo Black - couteau

    378,00 €

    Article code: ER-ERM-OP

  • ExtremaRatio - Pugio SE Black - Filo Singolo - coltello

    ExtremaRatio - Ermes - Satin Ordinanza - Collectors Edition - couteau

    407,00 €

    Article code: ER-ERM-OR

  • ExtremaRatio - N.K.1 Stone Washed - Neck Knife - Coltello

    Knives.it par ExtremaRatio - Couteau Tengu Tactical Black - Collection Edition - Icepick Karambit - couteau

    179,00 €

    Article code: KN-TENGU

  • ExtremaRatio - Fulcrum Nibbio - Esercito Italiano - Testudo - coltello

    ExtremaRatio - O.D. à baïonnette Couteau Civile NFG Fulcrum vert - Testudo - couteau

    462,00 €

    Article code: ER-FBN-GR

  • ExtremaRatio - Pugio SE Black - Filo Singolo - coltello

    ExtremaRatio - Herring NE - Fairbairn Sykes Dagger - couteau tactique

    543,00 €

    Article code: ER-HER-NE

  • ExtremaRatio - N.K.1 Stone Washed - Neck Knife - Coltello

    Knives.it par ExtremaRatio - Couteau Tengu Tactical Black - Standard Edition - Icepick Karambit - couteau

    135,01 €

    Article code: KN-TENGU-S

  • ExtremaRatio - N.K.1 Stone Washed - Neck Knife - Coltello

    Knives.it par Simone Tonolli - Etui Kydex Deep Carry pour couteau Tengu Tactical - Accessoires pour couteaux

    30,00 €

  • ExtremaRatio - Shrapnel OG Testudo - coltello

    ExtremaRatio - Sethlans Survival - N690 Stone Washed - Couteau

    395,00 €

    Article code: ER-SET-SW

  • ExtremaRatio - Shrapnel OG Testudo - coltello

    ExtremaRatio - Sethlans Survival - D2 Exp Dark - Couteau

    395,00 €

    Article code: ER-SET-BK

  • ExtremaRatio - Mato Grosso - Machete - Coltello

    ExtremaRatio - Misericordia - 4° Reggimento Alpini Paracadutisti - couteau tactique

    184,00 €

    Article code: ER-MIS-BK

  • ExtremaRatio - Task Testudo - Coltello

    ExtremaRatio - Task Desert Warfare - Tactical Knife - Couteau

    362,00 €

    Article code: ER-TASK-DW

  • ExtremaRatio - Collaborazione Collini 2015 - Limited Edition - coltello

    ExtremaRatio - Frame Rock Titan - Blue Satin - couteau pliant

    518,00 €

    Article code: ER-FRTI-BL

  • ExtremaRatio - Collaborazione Collini 2015 - Limited Edition - coltello

    ExtremaRatio - Frame Rock Titan - Black DLC - couteau pliant

    525,00 €

    Article code: ER-FRTI-BK

  • ExtremaRatio - 39-09 COFS Combat - coltello

    ExtremaRatio - 39-09 - Commandement Opérationnel Forces Spéciales COFS Combat - couteau

    345,00 €

  • ExtremaRatio - Shrapnel OG Testudo - coltello

    ExtremaRatio - E.C.M. Cobra - ECM Einsatzkommando - Couteau

    369,00 €

    Article code: ER-ECM

  • ExtremaRatio - Pugio SE Black - Filo Singolo - coltello

    ExtremaRatio - Giant Mamba - Black - couteau tactique

    293,00 €

    Article code: ER-GMA-BK

  • ExtremaRatio - Pugio SE Black - Filo Singolo - coltello

    ExtremaRatio - Giant Mamba - Ranger Green - couteau tactique

    252,00 €

    Article code: ER-GMA-RG

  • ExtremaRatio - Pugio SE Black - Filo Singolo - coltello

    ExtremaRatio - Giant Mamba - HCS - couteau tactique

    252,00 €

    Article code: ER-GMA-HC

  • ExtremaRatio - Contact C Knife Black - coltello tattic

    ExtremaRatio - Contact C Knife Black - couteau tactique

    204,00 €

    Article code: ER-CC-BK

  • ExtremaRatio - Contact C Knife Ranger Green - coltello tattico

    ExtremaRatio - Contact C Knife Ranger Green - couteau tactique

    191,00 €

  • ExtremaRatio - Contact C Knife Ranger Green - coltello tattico

    ExtremaRatio - Contact C Knife HCS - couteau tactique

    191,00 €

    Article code: ER-CC-HC

  • Victorinox - Fodero in pelle 4.0523.3

    Ulticlip - SLIM 2.2 petit clip universel - Accessoires pour couteaux

    14,49 €

    Article code: SLIM2.2

  • Victorinox - Fodero in pelle 4.0523.3

    Ulticlip - Clip moyen universel SLIM 3.3 - Accessoires pour couteaux

    14,49 €

    Article code: SLIM3.3

  • Victorinox - Fodero in pelle 4.0523.3

    Ulticlip - ULTICLIP3 + grand clip universel - Accessoires pour couteaux

    15,01 €

    Article code: ULTICLIP3+

  • ExtremaRatio, MF1 BC, coltello chiudibile

    ExtremaRatio - T911 Tuscania Rescue Tool - couteau pliant

    295,00 €

    Article code: ER-T911

  • ExtremaRatio - BF4 R knife Satin - coltello

    ExtremaRatio - BD4 R Couteau Satin - couteau

    167,01 €

    Article code: ER-BD4R-BK

  • ExtremaRatio - Resolza Stone Washed - coltello

    ExtremaRatio - Resolza 10 - Noir - couteau pattada

    180,00 €

    Article code: ER-RE10-BK

  • ExtremaRatio - Resolza Stone Washed - coltello

    ExtremaRatio - Resolza 10 - Stone Washed - couteau pattada

    177,00 €

    Article code: ER-RE10-SW

  • ExtremaRatio - Pugio SE Black - Filo Singolo - coltello

    ExtremaRatio - Contact Wolf Grey Knife Stone Washed - couteau tactique

    252,00 €

  • ExtremaRatio - Pugio SE Black - Filo Singolo - coltello

    ExtremaRatio - Contact Ranger Green Knife Stone Washed - couteau tactique

    252,00 €

  • ExtremaRatio - BF2V - Coltello per barca

    ExtremaRatio - BF2H Helmsman - Couteau à voile multi-outils

    214,00 €

  • ExtremaRatio - Pugio SE Black - Filo Singolo - coltello

    ExtremaRatio - Contact Knife Black - couteau tactique

    293,00 €

    Article code: ER-CON-BK

  • ExtremaRatio - Pugio SE Black - Filo Singolo - coltello

    ExtremaRatio - Contact Desert Knife Stone Washed - couteau tactique

    252,00 €

  • ExtremaRatio - Pugio SE Black - Filo Singolo - coltello

    ExtremaRatio - Silente Knife Black - NOCS Polizia di Stato - couteau avec pince multi-usage

    499,00 €

    Article code: ER-SILENTE

  • ExtremaRatio - Pugio SE Black - Filo Singolo - coltello

    ExtremaRatio - Nimbus Special Knife - Collector's Edition - Couteau

    713,00 €
    Fuori Produzione - Discontinued
  • ExtremaRatio - Fulcrum Nibbio - Esercito Italiano - Testudo - coltello

    ExtremaRatio - Fulcrum Bayonet knife NFG Black - couteau

    462,00 €

  • ExtremaRatio - Pugio SE Black - Filo Singolo - coltello

    ExtremaRatio - Nimbus Black Operative - couteau

    291,99 €

    Article code: ER-NIM-OP

  • ExtremaRatio - BF4 R knife Satin - coltello

    ExtremaRatio - BD2 R Satin - couteau

    164,00 €

    Article code: ER-BD2R-SA

  • ExtremaRatio - BF4 R knife Satin - coltello

    ExtremaRatio - Couteau BD2 Lucky Desert - Couteau

    157,00 €

    Article code: ER-BD2-DE

  • ExtremaRatio - BF4 R knife Satin - coltello

    ExtremaRatio - Couteau BD2 Lucky Black - couteau

    166,01 €

  • ExtremaRatio - Fulcrum Nibbio - Esercito Italiano - Testudo - coltello

    ExtremaRatio - Couteau à baïonnette Fulcrum NFG Desert SW - couteau

    295,00 €

    Article code: ER-FBN-DE

  • ExtremaRatio, BF1CD, Drop Point, coltello

    ExtremaRatio - BD0 R - Noir - Stone Washed - couteau

    86,00 €

    Article code: ER-BD0R-BK

  • ExtremaRatio, BF1CD, Drop Point, coltello

    ExtremaRatio - BD0 R - HCS - Stone Washed - couteau

    86,00 €

    Article code: ER-BD0R-HC

  • ExtremaRatio, BF1CD, Drop Point, coltello

    ExtremaRatio - BD0 R - Ranger Green - Stone Washed - couteau

    86,00 €

    Article code: ER-BD0R-RG

  • ExtremaRatio, BF1CD, Drop Point, coltello

    ExtremaRatio - BD0 R - Desert - Stone Washed - couteau

    86,00 €

    Article code: ER-BD0R-DE

  • ExtremaRatio - BF4 R knife Satin - coltello

    ExtremaRatio - BD4 Lucky Desert - couteau

    172,00 €

    Article code: ER-BD4-DE

  • ExtremaRatio - BF4 R knife Satin - coltello

    ExtremaRatio - BD4 Lucky Black - couteau

    182,00 €

  • ExtremaRatio - BF4 R knife Satin - coltello

    ExtremaRatio - BD4 R Couteau Satin - couteau

    177,00 €

    Article code: ER-BD4R-SA

  • ExtremaRatio - 185° RAO - nuova versione 2018 - coltello

    ExtremaRatio - 185° RAO - nouvelle version 2018 - couteau

    370,00 €

    Article code: ER-RAO-BK

  • ExtremaRatio, BF1CD, Drop Point, coltello

    ExtremaRatio - BF0 R CD - Stone Washed - couteau

    84,00 €

    Article code: ER-BF0R-SW

  • ExtremaRatio, BF1CD, Drop Point, coltello

    ExtremaRatio - BF0 R CD - Desert Warfare - Stone Washed - couteau

    84,00 €

    Article code: ER-BF0R-DW

  • ExtremaRatio, BF1CD, Drop Point, coltello

    ExtremaRatio - BF1CD Desert Warfare - Drop Point - couteau

    184,00 €

    Article code: ER-BF1CD-DW

  • ExtremaRatio - Mato Grosso - Machete - Coltello

    ExtremaRatio - Requiem Wolf Grey - couteau tactique

    155,00 €

    Article code: ER-REQ-WG

  • ExtremaRatio - Mato Grosso - Machete - Coltello

    ExtremaRatio - Requiem Ranger Green - couteau tactique

    155,00 €

    Article code: ER-REQ-RG

  • ExtremaRatio - Mato Grosso - Machete - Coltello

    ExtremaRatio - Requiem Desert - couteau tactique

    155,00 €

    Article code: ER-REQ-DE

  • ExtremaRatio - Mato Grosso - Machete - Coltello

    ExtremaRatio - Requiem HCS - couteau tactique

    155,00 €

    Article code: ER-REQ-HC

  • ExtremaRatio - Mato Grosso - Machete - Coltello

    ExtremaRatio - Requiem Black - couteau tactique

    167,01 €

    Article code: ER-REQ-BK

  • ExtremaRatio - Mato Grosso - Machete - Coltello

    ExtremaRatio - Mamba Wolf Gray - couteau tactique

    156,00 €

    Article code: ER-MAM-WG

  • ExtremaRatio - T-Razor - coltello

    ExtremaRatio - Panthera Satin - couteau pliant

    253,00 €

    Article code: ER-PAN-SA

  • ExtremaRatio - T-Razor - coltello

    ExtremaRatio - Panthera Black - couteau pliant

    234,00 €

    Article code: ER-PAN-BL

  • ExtremaRatio - 185° RAO - nuova versione 2018 - coltello

    ExtremaRatio - 185 ° RAO - première version - couteau

    367,00 €
    Fuori Produzione - Discontinued
  • ExtremaRatio - Shrapnel OG Testudo - coltello

    ExtremaRatio - Defender 2 Stone Washed - couteau

    219,00 €

    Article code: ER-DEF2-SW

  • ExtremaRatio - Shrapnel OG Testudo - coltello

    ExtremaRatio - Defender 2 Black - couteau

    244,00 €

    Article code: ER-DEF2-BK

  • ExtremaRatio - Shrapnel OG Testudo - coltello

    ExtremaRatio - Defender 2 DG Black - couteau

    247,00 €

    Article code: ER-DEF2DG-BK

  • ExtremaRatio - Shrapnel OG Testudo - coltello

    ExtremaRatio - Defender DG Stone Washed - Couteau

    216,00 €

    Article code: ER-DEFDG-SW

  • ExtremaRatio - Shrapnel OG Testudo - coltello

    ExtremaRatio - Defender Black - Couteau

    238,00 €

    Article code: ER-DEF-BK

  • ExtremaRatio - Shrapnel OG Testudo - coltello

    ExtremaRatio - Defender DG Black - Couteau

    241,00 €

    Article code: ER-DEFDG-BK

  • ExtremaRatio - Shrapnel OG Testudo - coltello

    ExtremaRatio - Scout Noir - couteau

    204,00 €

    Article code: ER-SCO-BK

  • ExtremaRatio - Mato Grosso - Machete - Coltello

    ExtremaRatio - Mamba Desert - couteau tactique

    156,00 €

    Article code: ER-MAM-DE

  • ExtremaRatio - Mato Grosso - Machete - Coltello

    ExtremaRatio - Mamba HCS - couteau tactique

    156,00 €

    Article code: ER-MAM-HC

  • ExtremaRatio - Mato Grosso - Machete - Coltello

    ExtremaRatio - Mamba Ranger Green - couteau tactique

    156,00 €

    Article code: ER-MAM-RG

  • ExtremaRatio - Mato Grosso - Machete - Coltello

    ExtremaRatio - Mamba Black - couteau tactique

    168,99 €

    Article code: ER-MAM-BK

  • ExtremaRatio - BF2 R CD - Razor Opening - Black Drop Point - couteau

    ExtremaRatio - BF2 R CD - Razor Opening - Black Drop Point - couteau

    195,00 €

    Article code: ER-BF2RCD-BK

  • ExtremaRatio - BF2 R CT - Razor Opening - Black Tanto Point - couteau

    ExtremaRatio - BF2 R CT - Razor Opening - Black Tanto Point - couteau

    195,00 €

  • Extremaratio - A.M.F. Advanced Multi Function Black - AMF - Coltello

    Extremaratio - A.M.F. Advanced Multi Function Black - AMF - Couteau

    392,00 €

  • Extremaratio - A.M.F. Advanced Multi Function Desert - AMF - Coltello

    Extremaratio - A.M.F. Advanced Multi Function Desert - AMF - Couteau

    384,00 €

    Article code: ER-AMF-DE

  • ExtremaRatio - Shrapnel OG Testudo - coltello

    ExtremaRatio - Scout Satin - couteau

    178,00 €

  • ExtremaRatio - Glauca J1 Jagdkommando - coltello

    ExtremaRatio - Glauca J1 Jagdkommando - couteau

    523,00 €

Articles 1 à 80 sur un total de 282

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