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Extrema Ratio

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50 Items

  1. ExtremaRatio - MF0T Zero Oxide Grey 33pcs. Limited Edition - PRIVATE COLLECTION - knife

    Exclusive limited edition series in collaboration with INSTRUCTOR ZERO (Team Zero International Training Security Company), renowned firearms training specialist, risk analyst and strategic consultant working worldwide for both military and law enforcement specialized units and government agencies.

    KNIFE WITHDRAWN FROM PRIVATE COLLECTION
    * Provenance: withdrawn from private collection, previously purchased.
    * Condition: New, never used
    * Commercially available: Discontinued, limited run of only 33 numbered pieces
    * Sharpening: Factory sharpened
    * Marks on blade: None
    * Marks on handle: None
    * Box: Present
    * Scabbard: /
    * Manuals, Certificates and Warranties: Present
    * Checked and Certified by our in-house laboratory

    Intended Use: Tactical / Collection

    Production type: Industrial
    Country of Production: Italy
    Blade: Stainless steel N690Co 58HRC
    Blade Treatment: Testudo MIL-C-13924
    Handle: Anticorodal
    Blade Length: 68mm.
    Blade thickness: 4mm.
    Length closed: 110mm.
    Total length: 181mm.
    Thickness when closed: 23mm. (15mm without clip)
    Weight: 139g.
    Closure: Liner Lock with additional safety catch
    Clip: Stainless Steel
    Packaging: watertight plastic box with Extrema Ratio and Team Zero logos, Warranty Certificate, Velcro Patch, Limited edition made in only 33 pieces

    ER-MF0TBZOG
    €368.03
    Only 1 left
    Only 1 left
  2. ExtremaRatio - KIRI Neck Knife - N690Co Dark Stone Washed - Kiridashi Knife

    The kiridashi is a traditional Japanese cutting tool that has ancient roots in culture and tradition; Extrema Ratio has revised according to its style this knife belonging to Japanese tradition giving it a more tactical look than the original. While retaining the characteristic chisel rounding, KIRI has a special tip designed to achieve a high penetration efficiency. 

    Extrema Ratio KIRI is available in Dark Stone and Satin finishes, both made of Böhler N690 steel hardened to 58HRC. The handle consists of two black-colored anodized anticorodal aluminum grips. The preshaped Kydex sheath is equipped with metal eyelets that allow paracord lanyard to be attached to MOLLE system platforms as well.


    Intended use: Neck knife / Utility

    Type of production: industrial
    Country of production: Italy
    Blade: stainless steel N690Co 58/60HRC
    Blade treatment: Dark Stone Washed
    Handle: stainless steel N690Co 58/60HRC
    Blade length: 60mm.
    Blade thickness: 5mm.
    Total length: 190mm.
    Weight: 112g.
    Sheath: in Kydex, for neck
    Packaging: cardboard box with Extrema Ratio logos
    Notes: possibility of using the scabbard with Ulti-Clip, M.O.L.L.E. or Tek-Lok systems (may be purchased separately)

    ER-KIRI-DSW
    €216.39
    Only 3 left
    Only 3 left
  3. ExtremaRatio - KIRI Neck Knife - N690Co Satin - Kiridashi Knife

    The kiridashi is a traditional Japanese cutting tool that has ancient roots in culture and tradition; Extrema Ratio has revised according to its style this knife belonging to Japanese tradition giving it a more tactical look than the original. While maintaining the characteristic chisel rounding, KIRI has a special tip designed to achieve a high penetration efficiency. 

    Extrema Ratio KIRI is available in Dark Stone and Satin finishes, both made of Böhler N690 steel hardened to 58HRC. The handle consists of two black-colored anodized anticorodal aluminum grips. The preshaped Kydex sheath is equipped with metal eyelets that allow paracord lanyard to be attached to MOLLE system platforms as well.


    Intended use: Neck knife / Utility

    Type of production: industrial
    Country of production: Italy
    Blade: stainless steel N690Co 58/60HRC
    Blade treatment: satin finish
    Handle: stainless steel N690Co 58/60HRC
    Blade length: 60mm.
    Blade thickness: 5mm.
    Total length: 190mm.
    Weight: 112g.
    Sheath: in Kydex, for neck
    Packaging: cardboard box with Extrema Ratio logos
    Notes: possibility of using the scabbard with Ulti-Clip, M.O.L.L.E. or Tek-Lok systems (may be purchased separately)

    ER-KIRI-SA
    €211.48
    Only 1 left
    Only 1 left
  4. ExtremaRatio - MF0 Drop Point Black - PRIVATE COLLECTION - folding knife

    KNIFE WITHDRAWN FROM PRIVATE COLLECTION
    * Type: Previously Purchased
    * Condition: Overall in good condition.
    * Commercially Available Available.
    * Sharpening: Factory.
    * Marks on blade: A couple of light marks on burnishing.
    * Marks on handle: Slight signs of wear on hardware and clip.
    * Box: Present, but not in perfect condition
    * Scabbard: -
    * Manuals, Certificates and Warranties: Present
    * Checked and Certified by our in-house laboratory


    Intended Use: Tactical/Sporting

    Production Type: Industrial
    Country of Production: Italy
    Blade: Stainless steel N690Co 58HRC
    Blade Finish: Burnishing MIL-C-13924
    Handle: Anticorodal (aluminum)
    Blade length: 68mm.
    Blade thickness: 4mm.
    Length closed: 110mm.
    Total length: 181mm.
    Thickness when closed: 15mm.
    Weight: 139g.
    Closure: Liner Lock, with additional safety catch
    Clip: stainless steel removable and reversible
    Packaging: cardboard box with Extrema Ratio logos

    AP-MF0D-CP
    €188.52
    Only 1 left
    Only 1 left
  5. ExtremaRatio - Ferrum T knife - Black Warfare - knife

    Ferrum T is a folding knife with a clear tactical connotation equipped with a spear point blade with lightening slot. It has a slim and compact shape, the two anodized anticorodal aluminum grips make up a light, slender and at the same time very resistant handle. It can be housed in a breast pocket, in small flashlight holsters or inside a single loop of the M.O.L.L.E. system.

    Equipped with a flipper assisted opening system, the blade rotates on ball bearings which allow a smooth and uncertain movement of the blade. This mechanism allows the user to open the blade quickly and easily, even with just one hand. The locking system adopted is the well-tested liner lock. The reversible clip is positioned on the back.

    Ferrum T is available in 2 versions: the first, FERRUM T Black Warfare, equipped with a black handle and Geotech Camo blade, the innovative and original Extrema Ratio camouflage pattern, created by laser engraving. The second, FERRUM T TACTICAL MUD, with anodized handle in the new gray-green color and blade with MIL-C-13924 bluing.

    The reversible clip is positioned on the back.

    Intended use: Tactical / EDC

    Type of production: Industrial
    Country of production: Italy
    Blade: N690Co 58HRC stainless steel
    Blade Finish: Black
    Handle: Rough Anticorodal
    Blade length: 73mm.
    Blade thickness: 3mm.
    Closed length: 90mm.
    Total length: 184mm.
    Weight: 86g.
    Closure: Liner Lock
    Clip: Removable and reversible, in stainless steel
    Packaging: Cardboard box with Extrema Ratio logos
    Note: -

    ER-FE-T-BW
    €190.98
    Only 1 left
    Only 1 left
  6. ExtremaRatio - Ferrum T Black knife - Tactical Mud - knife

    Ferrum T is a folding knife with a clear tactical connotation equipped with a spear point blade with lightening slot. It has a slim and compact shape, the two anodized anticorodal aluminum grips make up a light, slender and at the same time very resistant handle. It can be housed in a breast pocket, in small flashlight holsters or inside a single loop of the M.O.L.L.E. system.

    Equipped with a flipper assisted opening system, the blade rotates on ball bearings which allow a smooth and uncertain movement of the blade. This mechanism allows the user to open the blade quickly and easily, even with just one hand. The locking system adopted is the well-tested liner lock. The reversible clip is positioned on the back.

    Ferrum T is available in 2 versions: the first, FERRUM T Black Warfare, equipped with a black handle and Geotech Camo blade, the innovative and original Extrema Ratio camouflage pattern, created by laser engraving. The second, FERRUM T TACTICAL MUD, with anodized handle in the new gray-green color and blade with MIL-C-13924 bluing.

    The reversible clip is positioned on the back.

    Intended use: Tactical / EDC

    Type of production: Industrial
    Country of production: Italy
    Blade: N690Co 58HRC stainless steel
    Blade Finish: Black
    Handle: Rough Anticorodal
    Blade length: 73mm.
    Blade thickness: 3mm.
    Closed length: 90mm.
    Total length: 184mm.
    Weight: 86g.
    Closure: Liner Lock
    Clip: Removable and reversible, in stainless steel
    Packaging: Cardboard box with Extrema Ratio logos
    Note: -

    ER-FE-T-TM
    €195.90
    Only 1 left
    Only 1 left
  7. ExtremaRatio - Ferrum E knife - Tactical Black - knife

    Ferrum E is a simple, essential and functional EDC (Every Day Carry) folding knife. Equipped with a drop blade, it has a slim and compact shape, the two anodised anticorodal aluminium sheaths make up a light, slender and at the same time very durable handle. It can be housed in a breast pocket, in small torch holsters or inside a single M.O.L.E. loop.

    Equipped with a flipper-assisted opening system, the blade rotates on ball bearings that allow for smooth and uncertainty-free blade movement. This mechanism allows the operator to open the blade quickly and easily, even with one hand. The locking system adopted is the tried and tested liner lock.

    The reversible clip is positioned at the rear.

    Intended use: Tactical / EDC

    Production type: Industrial
    Country of Production: Italy
    Blade: Stainless steel N690Co 58HRC
    Blade finish: Satin
    Handle: Rough Anticorodal
    Blade length: 75mm.
    Blade thickness: 3mm.
    Length closed: 90mm.
    Total length: 186mm.
    Weight: 87g.
    Closure: Liner Lock
    Clip: Removable and reversible, stainless steel
    Packaging: Cardboard box with Extrema Ratio logos
    Notes: -

    ER-FE-E-TB
    €177.87
    Only 1 left
    Only 1 left
  8. ExtremaRatio - Ferrum E knife - Tactical Mud - knife

    Ferrum E is a simple, essential and functional EDC (Every Day Carry) folding knife. Equipped with a drop blade, it has a slim and compact shape, the two anodised anticorodal aluminium sheaths make up a light, slender and at the same time very durable handle. It can be housed in a breast pocket, in small torch holsters or inside a single M.O.L.E. loop.

    Equipped with a flipper-assisted opening system, the blade rotates on ball bearings that allow for smooth and uncertainty-free blade movement. This mechanism allows the operator to open the blade quickly and easily, even with one hand. The locking system adopted is the tried and tested liner lock.

    The reversible clip is positioned at the rear.

    Intended use: Tactical / EDC

    Production type: Industrial
    Country of Production: Italy
    Blade: Stainless steel N690Co 58HRC
    Blade finish: Satin
    Handle: Rough Anticorodal
    Blade length: 75mm.
    Blade thickness: 3mm.
    Length closed: 90mm.
    Total length: 186mm.
    Weight: 87g.
    Closure: Liner Lock
    Clip: Removable and reversible, stainless steel
    Packaging: Cardboard box with Extrema Ratio logos
    Notes: -

    ER-FE-E-TM
    €182.79
    Only 1 left
    Only 1 left
  9. ExtremaRatio - BF1CD - Black Rough - knife

    Intended Use: Tactical / EDC

    Production type: Industrial
    Country of Production: Italy
    Blade: stainless steel N690Co 58HRC
    Blade Finish: Burnishing MIL-C-13924
    Handle: Rough Anticorodal
    Blade Length: 70mm.
    Blade thickness: 3mm.
    Length closed: 99mm.
    Total length: 168mm.
    Weight: 85g.
    Closure: Liner Lock
    Clip: Removable and reversible, stainless steel
    Packaging: Cardboard box with Extrema Ratio logos
    Notes: -

    ER-BF1CDBR
    €144.26
    Only 1 left
    Only 1 left
  10. ExtremaRatio - K-Talon Karambit - N690 Dark Stone Washed - Knife

    The K-Talon is a karambit with a particularly thin full tang structure that, including sheath and grips, reaches a thickness of only 10 mm. The curved, hooked blade is designed inspired by the shape of a claw. It is designed to achieve precise, deep cuts while simultaneously hooking, trapping and/or ripping.

    The back ring is designed to achieve a strong and secure grip in all conditions preventing the knife from sliding back and making it exceptionally difficult to disarm or turn against the user.

    The very thin Kydex sheath has a quick release and comes with paracord that allows it to be used as a neck knife or attached to MOLLE-system platforms.

     

    Intended use: tactical

    Type of production: industrial
    Country of production: Italy
    Blade: full tang, stainless steel N690Co 58/60HRC
    Blade finish: Dark Stone Washed
    Handle: anodized anticorodal aluminum
    Blade length: 70mm.
    Blade thickness: 4mm.
    Total length: 175mm.
    Weight: 130g.
    Sheath: Kydex
    Packaging: cardboard box with Extrema Ratio logos
    Notes: possibility of using the scabbard with multi-position, M.O.L.L.E.-compatible attachment systems.

    ER-KTAL-DS
    €231.97
    Only 98 left
    Only 98 left
    Rating:
    87%
    4.4
  11. ExtremaRatio - Satre - N690 Black - Neck Knife - Knife

    Satre is a small, light and extremely resistant fixed blade knife. Given its characteristics, it is used in a wide range of disciplines and uses ranging from survival activity, bushcraft or as an element of an EDC (Every Day Carry) kit.

    It was designed in collaboration with Daniele Dal Canto, Master Advanced F.I.S.S.S. (Italian Federation of Sports and Experimental Survival).

    In Neck Knife mode, through the use of a paracord 550 cord, it is possible to keep it around the neck by keeping the knife vertically with the handle facing downwards. The metal eyelets on the sheath made of pre-shaped Kydex allow the application of both the lanyard and the accessory holder.

    The full-tang skeletonized structure allows you to customize the knife using paracord as a coating for the handle

    This Black version uses the Böhler N690 heat treated at 58 HRC. This material is chosen for its resistance to oxidation, the durability of the wire and above all the reliability it has shown over the years.

    Intended use: Neck / Hiking / Utility Knife

    Type of production: industrial
    Country of production: Italy
    Blade: stainless steel N690Co 58 / 60HRC
    Blade treatment: Black
    Handle: stainless steel N690Co 58 / 60HRC
    Blade length: 70mm.
    Blade thickness: 5mm.
    Total length: 163mm.
    Weight: 78 g.
    Sheath: in Kydex, for neck
    Packaging: Cardboard box with Extrema Ratio logos
    Note: possibility to use the sheath with Ulti-Clip systems, M.O.L.L.E. o Tek-Lok (available separately)

    ER-SAT-BL
    €124.59
    Only 1 left
    Only 1 left
    Rating:
    83%
    4.2
  12. ExtremaRatio - Satre - S600 Black EXP Dark - Neck Knife

    Satre is a fixed blade knife of small dimensions, light and extremely resistant. Given its characteristics, it can be used in a wide range of disciplines and uses ranging from survival activities, bushcraft or as an element of an EDC (Every Day Carry) kit.

    It has been designed in collaboration with Daniele Dal Canto, Master Advanced F.I.S.S. (Federazione italiana survival sportivo e sperimentale) instructor.

    In Neck Knife mode, through the use of a 550 paracord lanyard, it is possible to hold it around the neck keeping the knife vertical with the handle facing downwards. The metal eyelets on the sheath, made of pre-shaped Kydex, allow the application of both the lanyard and the accessory holder.

    The full-tang skeleton structure allows to personalize the knife using the Paracord as a coating for the handle.

    The Black S600 version uses Böhler S600 steel. This steel is used in industrial manufacturing to make metalworking tools and in mold making.

    The high content of Molybdenum, Tungsten and a good presence of Vanadium in its chemical composition, give it excellent qualities of hardness, wear resistance and toughness. The presence of Cobalt favors the formation of small carbides uniformly distributed, a characteristic that enhances and elevates wear resistance.

    Satre S600 is hardened and cryogenically treated, thus reaching an exceptional hardness of 64 HRC. This gives it great wear resistance and the ability to guarantee the cutting edge of the wire for a long time.

    Böhler S600 has 4.5% Chromium, which makes it a carbon steel and therefore can cause rust and oxidation if neglected. To better protect it from atmospheric agents, we have chosen the new external coating EXP DARK.

    The high hardness and resistance to wear and abrasion, make this steel not easy to sharpen.

     

    Intended Use: Neck Knife / Hiking / Utility

    Production type: industrial
    Country of production: Italy
    Blade: Carbon steel Bohler S600 64HRC
    Blade treatment: Black EXP DARK
    Handle:in carbon steel Bohler S600 64HRC
    Blade length: 70mm.
    Blade thickness: 5mm.
    Total length: 163mm.
    Weight: 78g.
    Scabbard: Kydex, for neck.
    Packaging: Cardboard box with Extrema Ratio logos.
    Notes: possibility to use the scabbard with Ulti-Clip, M.O.L.L.E. or Tek-Lok systems (available separately).

    ER-SAT-S6
    €138.52
    Only 1 left
    Only 1 left
    Rating:
    98%
    4.9
  13. ExtremaRatio - Satre - N690 Stone Washed - Neck Knife

    Satre is a fixed blade knife of small dimensions, light and extremely resistant. Given its characteristics, it can be used in a wide range of disciplines and uses ranging from survival activities, bushcraft or as an element of an EDC (Every Day Carry) kit.

    It has been designed in collaboration with Daniele Dal Canto, Master Advanced F.I.S.S. (Federazione italiana survival sportivo e sperimentale) instructor.

    In Neck Knife mode, through the use of a 550 paracord lanyard, it is possible to hold it around the neck keeping the knife vertical with the handle facing downwards. The metal eyelets on the sheath, made of pre-shaped Kydex, allow the application of both the lanyard and the accessory holder.

    The full-tang skeleton structure, allows to personalize the knife using the Paracord as a coating for the handle.

    The Stone Washed version uses Böhler N690 heat treated to 58 HRC. This material is chosen for its ability to resist oxidation, the durability of the edge and above all the reliability it has shown over the years.

     


    Intended Use: Neck Knife / Hiking / Utility

    Type of production: industrial
    Country of production: Italy
    Blade: Stainless steel N690Co 58/60HRC
    Blade Treatment: Stone Washed
    Handle: Stainless steel N690Co 58/60HRC
    Blade length: 70mm.
    Blade thickness: 5mm.
    Total lenght: 163mm.
    Weight: 78g.
    Scabbard: Kydex, for neck.
    Packaging: Cardboard box with Extrema Ratio logos.
    Notes: possibility to use the scabbard with Ulti-Clip, M.O.L.L.E. or Tek-Lok systems (available separately).

    ER-SAT-SW
    €119.67
    Only 2 left
    Only 2 left
    Rating:
    94%
    4.7
  14. ExtremaRatio - Frame Rock Titan - Black DLC - folding knife

    The Extrema Ratio Frame Rock is a new knife, based on the Ti-Rock project, a successful frame-lock knife made by Extrema Ratio in 2016 exclusively for Coltelleria Collini.

    The Extreme Ratio Frame Rock is characterized by the titanium handle that offers great resistance while being very light. The integrity of the frame-lock locking system is guaranteed against wear by an easily replaceable hardened steel insert.

    Unlike its drop-point predecessor, the Rock frame has a spearpoint blade 75 mm long, 6.0 mm thick, equipped with fuller for further lightening. The blade is made of Bohler N690 steel, heat treated to a hardness of 58 HRC. The same is available in black finish with DLC or satin finish.

    To make the opening even more fluid and free of uncertainties, the blade rotates on ball bearings. This mechanism allows the user to adjust the force necessary to release the blade from the closed position.

    The shape of the reversible clip allows a hidden port in the pocket, making the knife not visible from the outside. The large, solid handle and the well-proportioned blade allow this knife to tackle demanding tasks. Frame Rock weighs less than 200g, making it somewhat light for such a sturdy knife. It is supplied inside an ABS box.

    Intended use: collection / CQD

    Type of production: industrial
    Blade: in N690Co stainless steel
    Blade treatment: Black DLC
    Country of production: Italy
    Handle: in Titanium, machined from solid, with integral Frame Lock closure system with removable hinged and safe made of stainless steel
    Blade length: 75mm.
    Blade thickness: 6.3mm.
    Total length: 181mm.
    Weight: 193g.
    Clip: stainless steel, reversible, deep pocket type and with tip up port
    Notes: Conical Skull Crasher inserted in the shank
    Box: in ABS with Extrema Ratio logos

    ER-FRTI-BK
    €457.38
    Only 99 left
    Only 99 left
    Rating:
    90%
    4.5
  15. ExtremaRatio - Frame Rock Titan - Blue Satin - folding knife

    The Extrema Ratio Frame Rock is a new knife, based on the Ti-Rock project, a successful frame-lock knife made by Extrema Ratio in 2016 exclusively for Coltelleria Collini.

    The Extreme Ratio Frame Rock is characterized by the titanium handle that offers great resistance while being very light. The integrity of the frame-lock locking system is guaranteed against wear by an easily replaceable hardened steel insert.

    Unlike its drop-point predecessor, the Rock frame has a spearpoint blade 75 mm long, 6.0 mm thick, equipped with fuller for further lightening. The blade is made of Bohler N690 steel, heat treated to a hardness of 58 HRC. The same is available in black finish with DLC or satin finish.

    To make the opening even more fluid and free of uncertainties, the blade rotates on ball bearings. This mechanism allows the user to adjust the force necessary to release the blade from the closed position.

    The shape of the reversible clip allows a hidden port in the pocket, making the knife not visible from the outside. The large, solid handle and the well-proportioned blade allow this knife to tackle demanding tasks. Frame Rock weighs less than 200g, making it somewhat light for such a sturdy knife. It is supplied inside an ABS box.

    Intended use: collection / CQD

    Type of production: industrial,
    Blade: in N690Co stainless steel
    Blade treatment: Satin finish
    Country of production: Italy
    Handle: in Titanium, machined from solid, with integral Frame Lock closure system with removable hinged and safe made of stainless steel
    Blade length: 75mm.
    Blade thickness: 6.3mm.
    Total length: 181mm.
    Weight: 193g.
    Clip: stainless steel, reversible, deep pocket type and with tip up port
    Notes: Conical Skull Crasher inserted in the shank
    Box: in ABS with Extrema Ratio logos

    ER-FR-BS
    €454.92
    Only 99 left
    Only 99 left
  16. ExtremaRatio - BD0 R - Desert - Stone Washed - knife

    It is a small basic folder, produced with a technopolymer handle that enhances its resistance and lightness, thanks also to the steel frame. The blade locking mechanism is the tried and tested LINER-LOCK. The model maintains all the features of the previous BF0 model, updated with the new High Speed Razor Opening opening system and with a Sear Point blade.

    Type of production: industrial
    Blade: stainless steel N690Co 58HRC
    Country of production: Italy
    Handle: Nylon with stainless steel folders
    Blade length: 60mm.
    Blade thickness: 2.5mm.
    Length closed: 95mm.
    Total length: 145mm.
    Weight: 52g.
    Closure: Liner Lock
    Clip: reversible and removable, in stainless steel

    ER-BD0R-DE
    €79.51
    Only 1 left
    Only 1 left
  17. ExtremaRatio - BD0 R - Ranger Green - Stone Washed - knife

    It is a small basic folder, produced with a technopolymer handle that enhances its resistance and lightness, thanks also to the steel frame. The blade locking mechanism is the tried and tested LINER-LOCK. The model maintains all the features of the previous BF0 model, updated with the new High Speed Razor Opening opening system and with a Sear Point blade.

    Type of production: industrial
    Blade: stainless steel N690Co 58HRC
    Country of production: Italy
    Handle: Nylon with stainless steel folders
    Blade length: 60mm.
    Blade thickness: 2.5mm.
    Length closed: 95mm.
    Total length: 145mm.
    Weight: 52g.
    Closure: Liner Lock
    Clip: reversible and removable, in stainless steel

    ER-BD0R-RG
    €79.51
    Only 1 left
    Only 1 left
    Rating:
    93%
    4.7
  18. ExtremaRatio - BD0 R - HCS - Stone Washed - knife

    It is a small basic folder, produced with a technopolymer handle that enhances its resistance and lightness, thanks also to the steel frame. The blade locking mechanism is the tried and tested LINER-LOCK. The model maintains all the features of the previous BF0 model, updated with the new High Speed Razor Opening opening system and with a Sear Point blade.

    Type of production: industrial
    Blade: stainless steel N690Co 58HRC
    Country of production: Italy
    Handle: Nylon with stainless steel folders
    Blade length: 60mm.
    Blade thickness: 2.5mm.
    Length closed: 95mm.
    Total length: 145mm.
    Weight: 52g.
    Closure: Liner Lock
    Clip: reversible and removable, in stainless steel

    ER-BD0R-HC
    €79.51
    Only 1 left
    Only 1 left
  19. ExtremaRatio - BD0 R - Black - Stone Washed - knife

    It is a small basic folder, produced with a technopolymer handle that enhances its resistance and lightness, thanks also to the steel frame. The blade locking mechanism is the tried and tested LINER-LOCK. The model maintains all the features of the previous BF0 model, updated with the new High Speed Razor Opening opening system and with a Sear Point blade.

    Type of production: industrial
    Blade: stainless steel N690Co 58HRC
    Country of production: Italy
    Handle: Nylon with stainless steel folders
    Blade length: 60mm.
    Blade thickness: 2.5mm.
    Length closed: 95mm.
    Total length: 145mm.
    Weight: 52g.
    Closure: Liner Lock
    Clip: reversible and removable, in stainless steel

    ER-BD0R-BK
    €79.51
    Only 1 left
    Only 1 left
  20. ExtremaRatio - BF1CD Desert Warfare - Drop Point - knife

    Intended use: Tactical / Sports

    Type of production: Industrial
    Country of production: Italy
    Blade: stainless steel N690Co 58HRC
    Blade treatment: Desert Warfare
    Handle: Anticorodal
    Blade length: 70mm.
    Blade thickness: 3mm.
    Length closed: 99mm.
    Total length: 168mm.
    Thick when closed: 11mm.
    Weight: 85g.
    Opening: Ambidextrous opening pin on the blade
    Washers: Teflon
    Closure: Liner Lock
    Clip: stainless steel, deep pocket type, removable and reversible
    Sheath: -
    Packaging: cardboard box with Extrema Ratio logos
    Note: -

    ER-BF1CD-DW
    €162.30
    Only 1 left
    Only 1 left
  21. ExtremaRatio - Nightmare Karambit - Stone Washed - folding knife

    Folding knife with rescue karambit connotation, adopted by the special units of the Police of the Principality of Monaco U.S.I.V.P. The knife gets its name from a development and consulting department of the special intervention forces Monegasque.

    Intended use: Tactical / Rescue

    Type of production: Industrial
    Production Country: Italy
    Blade: Stainless steel 58HRC N690Co
    Blade treatment: Stone Washed
    Handle: Anticorodal
    Blade length: 73.5mm.
    Blade thickness: 3mm.
    Closed Length: -
    Overall length: 196mm.
    Thick when closed: -
    Weight: 166g.
    Lock: Liner Lock with safety catch further
    Clip: Stainless Steel
    Packaging: black cardboard with Extrema Ratio logos
    Notes: Size emergency belts and skull crasher

    12622
    €233.61
    Only 99 left
    Only 99 left
  22. ExtremaRatio - Nightmare Karambit - Black - folding knife

    Folding knife with rescue karambit connotation, adopted by the special units of the Police of the Principality of Monaco U.S.I.V.P. The knife gets its name from a development and consulting department of the special intervention forces Monegasque.

    Intended use: Tactical / Rescue

    Type of production: Industrial
    Production Country: Italy
    Blade: Stainless steel 58HRC N690Co
    Blade treatment: Testudo MIL-C-13924
    Handle: Anticorodal
    Blade length: 73.5mm.
    Blade thickness: 3mm.
    Closed Length: -
    Overall length: 196mm.
    Thick when closed: -
    Weight: 166g.
    Lock: Liner Lock with safety catch further
    Clip: Stainless Steel
    Packaging: black cardboard with Extrema Ratio logos
    Notes: Size emergency belts and skull crasher

    ER-NIG-BK
    €245.90
    Only 1 left
    Only 1 left
  23. ExtremaRatio - MF0T Tanto Black - folding knife

    Intended use: Tactical

    Type of production: Industrial
    Production Country: Italy
    Blade: Stainless steel 58HRC N690Co
    Blade treatment: Testudo MIL-C-13924
    Handle: Anticorodal
    Blade length: 68mm.
    Blade thickness: 4mm.
    Closed Length: 110mm.
    Overall length: 181mm.
    Thick when closed: 23mm. (15mm without clips)
    Weight: 139g.
    Lock: Liner Lock with safety catch further
    Clip: Stainless Steel
    Packaging: black cardboard with Extrema Ratio logos

    ER-MF0TB
    €241.80
    Only 99 left
    Only 99 left
  24. ExtremaRatio - Resolza S Satin - folding knife

    The Resolza is the typical Sardinian folding knife, called improperly "Pattada" from the name of the village in the province of Sassari which is the production center. Extrema Ratio wanted to pay homage to the most famous knife of the Italian tradition by blending its original shape and traditional, with the techniques and the most advanced materials.

    Intended use: Sports

    Type of production: Industrial
    Blade: N690Co 58HRC stainless steel
    Production Country: Italy
    Handle: Anticorodal
    Blade length: 79mm.
    Blade Thickness: 3mm.
    closed length: -mm.
    Overall length: 173mm.
    Weight: 36g.
    Lock: Liner Lock
    Clip: -
    Sheath: -
    Notes: -

    ER-RE8-SW
    €130.33
    Only 1 left
    Only 1 left
    Rating:
    100%
    5
  25. ExtremaRatio - Resolza S Black - folding knife

    The Resolza is the typical Sardinian folding knife, called improperly "Pattada" from the name of the village in the province of Sassari which is the production center. Extrema Ratio wanted to pay homage to the most famous knife of the Italian tradition by blending its original shape and traditional, with the techniques and the most advanced materials.

    Intended use: Sports

    Type of production: Industrial
    Blade: N690Co 58HRC stainless steel
    Production Country: Italy
    Handle: Anticorodal
    Blade length: 79mm.
    Blade Thickness: 3mm.
    closed length: -mm.
    Overall length: 173mm.
    Weight: 36g.
    Lock: Liner Lock
    Clip: -
    Sheath: -
    Notes: -

    ER-RE8-BK
    €133.61
    Only 1 left
    Only 1 left
  26. ExtremaRatio - BF2 V Stone Washed Knife - Sailing Knife

    This knife was designed and perfected in every detail for its primary use in the marine environment. The blade has a flat rounding that allows symmetrical cutting work with wider support. The tip, on the other hand, which is thick and durable thanks to the tanto version, allows greater penetration and a sharper, more precise cut. The stone washed finish process facilitates locating in the marine environment.

    The structure of the handle, made of anodized anticorodal aluminum, features a design with milling in concentric circles and lightening and anti-slip perforations so as to facilitate rinsing from saltiness. A small slot is cut into the middle of the cheek piece to allow for tightening or releasing smaller shackles. BF2 V is equipped with reversible clip; adjusting screw retainer for closing and opening the blade; 70-mm. knot shock ankle with fastening mechanism; and correctable. The presentation of the BF2 V took place on the Amerigo Vespucci School Ship.




    Intended use: sporting/nautical

    Type of production: industrial
    Blade: stainless steel N690Co 58HRC with Stone Washed finish
    Country of Production: Italy
    Handle: Anticorodal with stainless steel reinforcements
    Blade length: 65mm.
    Blade thickness: 3mm.
    Length closed: 124mm.
    Total length: 190mm.
    Weight: 149g.
    Closure: Liner Lock
    Clip: reversible and removable stainless steel
    Notes: Anklet/knife lock - Small sized turnbuckle - Quick-release tactical corrector - Open knife safety catch - Safety catch for Anklet/knife lock

    ER-BF2V
    €188.52
    Only 2 left
    Only 2 left
  27. ExtremaRatio - BF1CD - Drop Point - knife

    Blade: N690Co Stainless Steel
    Handle: Anticorodal
    Blade Lenght: 70mm.
    Blade Thickness: 3mm.
    Overall Lenght: 168mm.
    Weight: 85g.
    Lock: Liner Lock
    Clip: Stainless Steel
    Sheath: -
    Notes:
    ER-BF1CD-BK
    €140.16
    Only 2 left
    Only 2 left
    Rating:
    91%
    4.6
  28. ExtremaRatio - BF1CT knife - Tanto Point - knife

    Type of production: industrial
    Blade: stainless steel N690Co 58HRC
    Lama production: Italy
    Handle: Anticorodal
    Blade length: 70mm.
    Blade thickness: 3mm.
    Closed length: 99mm.
    Total length: 168mm.
    Balancing: -
    Weight: 85g.
    Closure: Liner Lock
    Clip: reversible and removable in stainless steel
    Sheath: -
    Note:

    ER-BF1CT-BK
    €140.16
    Only 1 left
    Only 1 left
    Rating:
    97%
    4.9
  29. ExtremaRatio - MF0D - Black - Lockable knife

    Intended use: Tactical

    Type of production: Industrial
    Blade production: Italy
    Blade: Stainless steel N690Co 58HRC
    Blade Treatment: Testudo
    Manicure: Anticorodal
    Blade Length: 70mm.
    Blade thickness: 4mm.
    Closed length: 110mm.
    Total length: 174mm.
    Closure thickness: 23mm. (15mm without clips)
    Balance: -
    Weight: 138g.
    Closure: Liner Lock
    Clip: Stainless Steel
    Sheath: -
    Packing: black carton box with Extrema Ratio logos
    Notes: -

    4350-0
    €241.80
    Only 99 left
    Only 99 left
  30. ExtremaRatio - TK BF1 Tanto - Training Knife

    Coltello da allenamento Extrema Ratio, interamente realizzato in alluminio aeronautico anodizzato, riprende in tutto e per tutto le forme dei coltelli originali Extrema Ratio.

    Privi di punta e di tagliente, questi coltelli offrono un feeling realistico e la massima sicurezza durante l'addestramento e la pratica di arti marziali che richiedono l'uso del coltello.

    Destinazione d'uso: Allenamento
    Produzione: Italia
    Lama: Alluminio Aeronautico 6061 T6
    Trattamento: Anodizzazione
    Impugnatura: -
    Fodero: -
    Lunghezza Lama: 70mm
    Lunghezza Totale: 165mm
    Spessore Lama: 6mm
    Peso: 54g.
    ER-BF1-TK
    €28.69
    Only 1 left
    Only 1 left
    Rating:
    83%
    4.2
  31. ExtremaRatio - Ti-Rock Satin Limited Edition - Laminated CoS & Blue Titanium - PRIVATE COLLECTION - knife

    KNIFE WITHDRAWN FROM PRIVATE COLLECTION
    * Type: Previously purchased
    * Condition: Like new, never taken out of its packaging.
    * Commercially available: Discontinued
    * Sharpening: Factory
    * Marks on blade: None
    * Marks on handle: None
    * Box: Present
    * Scabbard: /
    * Manuals, Certificates and Warranties: Present
    * Checked and Certified by our in-house laboratory


    Coltelleria Collini exclusive - Available in only 33 numbered examples on blade and box


    Intended use: collection / EDC / CQD

    Type of production: industrial, limited
    Blade: Japanese laminated stainless steel (San Mai) with cryogenically hardened 61.5HRC CoS cutting edge; with double concave shank in the strong of the blade
    Blade treatment: satin finish
    Country of manufacture: Italy
    Handle: made of Titanium, machined from solid, with integral Frame Lock system with removable casement and safety made of stainless steel
    Blade length: 75mm.
    Blade thickness: 6.3mm.
    Total length: 180mm.
    Weight: 186g.
    Clip: stainless steel, reversible, deep pocket type and with tip up port
    Notes: tapered Skull Crasher engaged in the tang - Limited and numbered edition of only 33 pieces serialized on the blade and box
    Box: cardboard, numbered, with ExtremaRatio and Coltelleria Collini logos

    TIROCK-C-BL-CP
    €0.00
    Only -20 left
    Only -20 left
    Out of stock
  32. ExtremaRatio - BF1TD Black - PRIVATE COLLECTION - knife

    Knife withdrawn from private collection - "TD" version now discontinued and no longer available - Overall in good condition - Shows small marks on both blade and handle, but nothing that compromises its actual use - Original factory sharpening still in good condition, definitely can be improved - Accompanied by original Extrema Ratio box and certificates and warranties - Checked and certified by our in-house laboratory.

    Type of manufacture: industrial
    Blade: stainless steel N690Co 58HRC
    Country of manufacture: Italy
    Handle: Anticorodal
    Blade length: 70mm.
    Blade thickness: 3mm.
    Length closed: 99mm.
    Total length: 168mm.
    Weight: 82g.
    Closure: Liner Lock
    Clip: reversible and removable stainless steel
    Notes: knife withdrawn from private collection, overall in good condition

    ER-BF1TDBK-CP
    €0.00
    Only -50 left
    Only -50 left
    Out of stock
  33. ExtremaRatio - MF0 Black Drop Rough - PRIVATE COLLECTION - folding knife

    Knife withdrawn from private collection. Overall in good condition shows small marks on clip, hardware and handle - Original factory sharpening in good condition - Complete with original Extrema Ratio cardboard box - Checked and certified by our in-house laboratory. 

    Intended Use: Tactical/Sportsman

    Production type: Industrial
    Country of Production: Italy
    Blade: Stainless steel N690Co 58HRC
    Blade Finish: Burnishing MIL-C-13924
    Handle: rough anticorodal (aluminum)
    Blade length: 68mm.
    Blade thickness: 4mm.
    Length closed: 110mm.
    Total length: 181mm.
    Thickness when closed: 15mm.
    Weight: 139g.
    Closure: Liner Lock, with additional safety catch
    Clip: Removable and reversible stainless steel
    Packaging: cardboard box with Extrema Ratio logos

    AP-MF0DR-CP
    €0.00
    Only -50 left
    Only -50 left
    Out of stock
  34. ExtremaRatio - MF0T knife Tanto Black - PRIVATE COLLECTION - folding knife

    Knife withdrawn from private collection. Overall in good condition has a number of surface scratches on the blade, small marks on the clip. Complete with cardboard box. Checked, certified and re-sharpened by our in-house laboratory Coltelleria Collini. 

    Intended Use: Tactical/Sportsman

    Type of production: Industrial
    Country of Production: Italy
    Blade: Stainless steel N690Co 58HRC
    Blade Treatment: Testudo MIL-C-13924
    Handle: Anticorodal
    Blade Length: 68mm.
    Blade thickness: 4mm.
    Length closed: 110mm.
    Total length: 181mm.
    Thickness when closed: 23mm. (15mm without clip)
    Weight: 139g.
    Closure: Liner Lock with additional safety catch
    Clip: Stainless Steel
    Packaging: black cardboard box with Extrema Ratio logos and certificate

    AP-MF0T
    €0.00
    Only -50 left
    Only -50 left
    Out of stock
  35. ExtremaRatio - K-Talon Karambit - N690 Stone Washed - Knife

    The K-Talon is a karambit with a particularly thin full tang structure that, including sheath and grips, reaches a thickness of only 10 mm. The curved, hooked blade is designed inspired by the shape of a claw. It is designed to achieve precise, deep cuts while simultaneously hooking, trapping and/or ripping.

    The back ring is designed to achieve a strong and secure grip in all conditions preventing the knife from sliding back and making it exceptionally difficult to disarm or turn against the user.

    The very thin Kydex sheath has a quick release and comes with paracord that allows it to be used as a neck knife or attached to MOLLE-system platforms.

     

    Intended use: tactical

    Type of production: industrial
    Country of production: Italy
    Blade: full tang, stainless steel N690Co 58/60HRC
    Blade finish: Stone Washed
    Handle: anodized anticorodal aluminum
    Blade length: 70mm.
    Blade thickness: 4mm.
    Total length: 175mm.
    Weight: 130g.
    Sheath: Kydex
    Packaging: cardboard box with Extrema Ratio logos
    Notes: possibility of using the scabbard with multi-position, M.O.L.L.E.-compatible attachment systems.

    ER-KTAL-SW
    €224.59
    Only 0 left
    Only 0 left
    Rating:
    87%
    4.4
    Out of stock
  36. ExtremaRatio - Satre Expeditions - Utility Neck Knife - Knife

    Satre Expeditions, as well as the Satre model from which it derives, is a fixed blade knife of small dimensions, light and extremely resistant. Given its characteristics, it can be used in a wide range of disciplines and uses or as part of an EDC (Every Day Carry) kit.

    It has been designed in collaboration with Daniele Dal Canto, Master Advanced F.I.S.S. (Federazione italiana survival sportivo e sperimentale) instructor. In Neck Knife mode, through the use of a 550 paracord lanyard, it is possible to hold it around the neck keeping the knife vertical with the handle facing downwards.

    The metal eyelets on the sheath, made of pre-shaped Kydex, allow the application of both the lanyard and the accessory holder. 

    The full-tang skeletonized structure, allows you to customize the knife using Paracord as a coating for the handle.

    Satre Expeditions uses Böhler N690 steel heat treated to 58 HRC with MIL-C-13924 burnishing and stone washed surface treatment (Dark Stone finish). It comes with a desert-colored pre-formed kydex sheath on which you can attach the Firesteel for lighting fires (provided inside the box).

     

     

    Intended use: Neck knife / Hiking / Utility

    Production type: industrial
    Country of production: Italy
    Blade: Stainless steel N690Co 58
    Blade finish: Burnishing MIL-C-13924 with Dark Stone finish
    Handle: Stainless steel N690Co 58
    Blade length: 70mm.
    Blade thickness: 5mm.
    Total length: 163mm.
    Weight: 78g.
    Scabbard: Kydex, for neck.
    Packaging: Cardboard box with Extrema Ratio logos.
    Notes:Designed and developed thanks to the collaboration with the instructor Daniele del Canto of F.I.S.S.S. (Federazione Italiana Survival Spotivo e Sperimentale).

    ER-SAT-EX
    €143.44
    Only 0 left
    Only 0 left
    Rating:
    100%
    5
    Out of stock
  37. ExtremaRatio - Frame Rock Titan Knife - Blue Satin - PRIVATE COLLECTION - folding knife

    Knife withdrawn from a private collection - In like new condition - Never regrind - Checked and certified by our in-house Coltelleria Collini laboratory.

    The Extrema Ratio Frame Rock is a new knife, based on the Ti-Rock project, a successful frame-lock knife made by Extrema Ratio in 2016 exclusively for Coltelleria Collini.

    The Extreme Ratio Frame Rock is characterized by a titanium handle that offers great resistance while being very light. The integrity of the frame-lock system is guaranteed against wear by an easily replaceable hardened steel insert.

    Unlike its drop-point predecessor, the Rock frame has a 75mm long, 6.0mm thick spearpoint blade fitted with a fuller for further lightening. The blade is made of Bohler N690 steel, heat treated to a hardness of 58 HRC. The same is available with a black finish with DLC treatment or satin.

    To make opening even more fluid and without uncertainty, the blade rotates on ball bearings. This mechanism allows the user to adjust the force necessary to obtain the release of the blade from the closed position.

    The shape of the reversible clip allows a hidden port in the pocket, making the knife not visible from the outside. The large and solid handle and the well-proportioned blade allow this knife to tackle heavy tasks. The Frame Rock weighs less than 200g, making it somewhat light for such a sturdy knife. Comes inside an ABS box.

    Intended use: collection / CQD

    Type of production: industrial,
    Blade: N690Co stainless steel
    Blade treatment: Satin finish
    Country of production: Italy
    Handle: Titanium, machined from solid, with integral Frame Lock closure system with removable flap and safety made of stainless steel
    Blade length: 75mm.
    Blade thickness: 6.3mm.
    Total length: 181mm.
    Weight: 193g.
    Clip: stainless steel, reversible, deep pocket type and with tip up port
    Notes: Conical Skull Crasher inserted in the tang
    Box: in ABS with Extrema Ratio logos

     

    AP-ER-FR-BS
    €0.00
    Only -50 left
    Only -50 left
    Out of stock
  38. ExtremaRatio - N.K. Steel Talon - Neck Knife - NKST - Knife

    Knife with monolithic structure that allows the use for very effective cutting strokes, it is equipped with Kydex quick release sheath with paracord for the neck of the knife to the neck

    Intended use: Neck Knife
    Type of production: Industrial
    Lama production: Italy
    Blade: stainless steel N690Co 58 / 60HRC
    Lama treatment: Stone Washed
    Handle: stainless steel N690Co 58 / 60HRC
    Blade length: 75mm.
    Blade thickness: 3mm.
    Total length: 188mm.
    Weight: 91.5g.
    Sheath: in Kydex, from collar
    Packaging: cardboard box with Extrema Ratio logos
    Notes: possibility to use the scabbard with M.O.L.L.E. o Tek-Lok (not included in the package)

    ER-NKST
    €121.31
    Only -99 left
    Only -99 left
    Out of stock
  39. ExtremaRatio - BF1CT - Damascus Coreless - Limited Edition - knife

    Purpose of use: Collection / Sportsman

    Type of production: Sprint Run, Industrial, Open Number
    Country of production: Prato - Italy
    Blade: Coreless Steel VG10 / VG2 61HRC made in Japan by Takefu Steel
    Blade treatment: chemical detection
    Handle: Anodized aluminum anticorodal
    Blade Length: 70mm.
    Blade thickness: 2.5mm.
    Closed length: 99mm.
    Total Length: 168mm.
    Closure thickness: 11mm.
    Weight: 84g.
    Opening: ambidextrous opening pin
    Washers: in fiberglass
    Closure: Liner Lock
    Clip: stainless steel, deep pocket, removable and reversible
    Packing: Cardboard box with Extrema Ratio logos - Numbered guarantee certificate
    Notes: Limited edition - Each specimen is numbered on the grip and on the internal warranty certificate - Exclusive Product of Coltelleria Collini

     

    ABOUT THE STEEL

    More than just a damask, Coreless steel made by Japanese Takefu Steel comes with over 70 layers of VG10 and VG2 stainless steel welded, forged and coated between them so that you can form a lightweight, slim and durable blade with a spectacular damask outer pattern.

    The peculiarity of Coreless steel, unlike conventional rolled steel or Japanese San-Mai, is that it does not have a hard core steel that is used for the cutting edge but has both the VG10 and VG2 steels arranged to form the cutting edge so alternating and sequential to each other.

    This particular construction gives the blade - compared to the two steels that make it, individually taken - greater resistance to oxidation, higher surface hardness (up to 61.5HRC), 25% more than cutting capacity, 25% more than the wire hold capacity and 25% more resilience making the blade more robust and less subject to breakage.

    Thanks to this latest steel, Takefu Steel has been rewarded on Japanese territory for research and development and innovation in the cutting-edge landscape. Coreless steel has already been chosen by major brands such as Kai and Mcusta Zanmai who since 2017 proposed it on their top productions of professional kitchen knives.



    Coreless Steel

    ER-BF1CT-C
    €192.62
    Rating:
    100%
    5
    Out of stock
  40. ExtremaRatio - BF1CD - Damascus Coreless - Limited Edition - knife

    Purpose of use: Collection / Sportsman

    Type of production: Sprint Run, Industrial, Open Number
    Country of production: Prato - Italy
    Blade: Coreless Steel VG10 / VG2 61HRC made in Japan by Takefu Steel
    Blade treatment: chemical detection
    Handle: Anodized aluminum anticorodal
    Blade Length: 70mm.
    Blade thickness: 2.5mm.
    Closed length: 99mm.
    Total Length: 168mm.
    Closure thickness: 11mm.
    Weight: 84g.
    Opening: ambidextrous opening pin
    Washers: in fiberglass
    Closure: Liner Lock
    Clip: stainless steel, deep pocket, removable and reversible
    Packing: Cardboard box with Extrema Ratio logos - Numbered guarantee certificate
    Notes: Limited edition - Each specimen is numbered on the grip and on the internal warranty certificate - Exclusive Product of Coltelleria Collini

     

    ABOUT THE STEEL

    More than just a damask, Coreless steel made by Japanese Takefu Steel comes with over 70 layers of VG10 and VG2 stainless steel welded, forged and coated between them so that you can form a lightweight, slim and durable blade with a spectacular damask outer pattern.

    The peculiarity of Coreless steel, unlike conventional rolled steel or Japanese San-Mai, is that it does not have a hard core steel that is used for the cutting edge but has both the VG10 and VG2 steels arranged to form the cutting edge so alternating and sequential to each other.

    This particular construction gives the blade - compared to the two steels that make it, individually taken - greater resistance to oxidation, higher surface hardness (up to 61.5HRC), 25% more than cutting capacity, 25% more than the wire hold capacity and 25% more resilience making the blade more robust and less subject to breakage.

    Thanks to this latest steel, Takefu Steel has been rewarded on Japanese territory for research and development and innovation in the cutting-edge landscape. Coreless steel has already been chosen by major brands such as Kai and Mcusta Zanmai who since 2017 proposed it on their top productions of professional kitchen knives.



    Coreless Steel

    ER-BF1CD-C
    €192.62
    Out of stock
  41. ExtremaRatio - Packaging 6 pieces Sector 1 table knife 4cm - Table knife

    Pack consists of 6 pieces of the model Sector 1

    TACTICAL KNIVES MEET THE KITCHEN!

    Extrema Ratio is delighted to apply the strict military standards to a range of professional kitchen knives.

    The steel blade is the proven BOHLER N690, a steel enriched with chrome, vanadium, molybdenum and cobalt, hardened to the hardness of 58HRC. The handle is made of Forprene, an elastomer that is in the "NATO standard" for resistance to extreme conditions, and is completely removable from the blade; this makes possible a thorough cleaning and maintenance of the knife.

    Sector 1 is a new table knife that Extrema Ratio has designed for everyday use, the handle engineering plastics military specification contains a blade made of pure Extrema Ratio durable style, ergonomic and extremely effective. Available individually in a cardboard box or in a cardboard special case of six pieces.

    Intended use: Raw meat / vegetables / table

    Type of production: Industrial
    Production Lama: Italy
    Blade: stainless steel hardened 58HRC N690Co
    Blade treatment: Satin
    Handle: Forprene
    Blade length: 40mm.
    Blade thickness: 4mm. on the blade
    Overall length: 165mm.
    Weight: 70g.
    Sheath: -
    Packaging: Cardboard box with Extrema Ratio logos
    Note: Can also be used as a sports knife or collectibles

    set-sect1
    €221.31
    Out of stock
  42. ExtremaRatio - Sector 1 table knife 4cm - Table knife

    TACTICAL KNIVES MEET THE KITCHEN!
    Extrema Ratio is delighted to apply the strict military standards to a range of professional kitchen knives.

    The steel blade is the proven BOHLER N690, a steel enriched with chrome, vanadium, molybdenum and cobalt, hardened to the hardness of 58HRC. The handle is made of Forprene, an elastomer that is in the "NATO standard" for resistance to extreme conditions, and is completely removable from the blade; this makes possible a thorough cleaning and maintenance of the knife.

    Sector 1 is a new table knife that Extrema Ratio has designed for everyday use, the handle engineering plastics military specification contains a blade made of pure Extrema Ratio durable style, ergonomic and extremely effective. Available individually in a cardboard box or in a cardboard special case of six pieces.

    Intended use: Raw meat / vegetables / table

    Type of production: Industrial
    Production Lama: Italy
    Blade: stainless steel hardened 58HRC N690Co
    Blade treatment: Satin
    Handle: Forprene
    Blade length: 40mm.
    Blade thickness: 4mm. on the blade
    Overall length: 165mm.
    Weight: 70g.
    Sheath: -
    Packaging: Cardboard box with Extrema Ratio logos
    Note: Can also be used as a sports knife or collectibles

    sector1
    €40.16
    Only -99 left
    Only -99 left
    Rating:
    97%
    4.9
    Out of stock
  43. ExtremaRatio - Sector 2 table knife 7cm - Table knife

    TACTICAL KNIVES MEET THE KITCHEN!
    Extrema Ratio is delighted to apply the strict military standards to a range of professional kitchen knives.

    The steel blade is the proven BOHLER N690, a steel enriched with chrome, vanadium, molybdenum and cobalt, hardened to the hardness of 58HRC. The handle is made of Forprene, an elastomer that is in the "NATO standard" for resistance to extreme conditions, and is completely removable from the blade; this makes possible a thorough cleaning and maintenance of the knife.

    Sector 2 is a new table knife that Extrema Ratio has designed for everyday use, the handle engineering plastics military specification contains a blade made of pure Extrema Ratio durable style, ergonomic and extremely effective. Available individually in a cardboard box or in a cardboard special case of six pieces.

    Intended use: Raw meat / vegetables / table

    Type of production: Industrial
    Production Lama: Italy
    Blade: stainless steel hardened 58HRC N690Co
    Blade treatment: Satin
    Handle: Forprene
    Blade length: 72mm.
    Blade thickness: 4mm. on the blade
    Overall length: 195mm.
    Weight: 79g.
    Sheath: -
    Packaging: Cardboard box with Extrema Ratio logos
    Note: Can also be used as a sports knife or collectibles

     

    sector2
    €45.08
    Rating:
    100%
    5
    Out of stock
  44. ExtremaRatio - Ti-Rock Satin SanMai CoS - Titanium Black - Limited Edition - folding knife

    A Coltelleria Collini Exclusive - Limited edition, available in only 33 serialized pieces


    Intended Use: collection / EDC / CQD

    Type of production: Industrial, Limited
    Blade: Japanese-rolled stainless steel (San Mai) with sharp CoS to 61,5HRC in cryogenic quenching; with fuller double concave in the strong blade
    Blade treatment: Satin finish
    Production Country: Italy
    Handle: Titanium, Billet, with full Frame Lock locking system with sash and secure removable made of stainless steel
    Blade length: 75mm.
    Blade Thickness: 6.3mm.
    Overall length: 180mm.
    Weight: 186g.
    Clips: stainless steel, reversible type deep pocket and port tip up
    Notes: Skull Crasher tapered shank engaged in - Edition limited and numbered edition in only 33 serialized pieces on the blade and box
    Box: cardboard, numbered, with ExtremaRatio logos and Coltelleria Collini

    TIROCK-C-BK
    €0.00
    Only -99 left
    Only -99 left
    Rating:
    91%
    4.6
    Out of stock
  45. ExtremaRatio - Ti-Rock Satin SanMai CoS - Titanium Blue - Limited Edition - folding knife

    A Coltelleria Collini Exclusive - Limited edition, available in only 33 serialized pieces


    Intended Use: collection / EDC / CQD

    Type of production: Industrial, Limited
    Blade: Japanese-rolled stainless steel (San Mai) with sharp CoS to 61,5HRC in cryogenic quenching; with fuller double concave in the strong blade
    Blade treatment: Satin finish
    Production Country: Italy
    Handle: Titanium, Billet, with full Frame Lock locking system with sash and secure removable made of stainless steel
    Blade length: 75mm.
    Blade Thickness: 6.3mm.
    Overall length: 180mm.
    Weight: 186g.
    Clips: stainless steel, reversible type deep pocket and port tip up
    Notes: Skull Crasher tapered shank engaged in - Edition limited and numbered edition in only 33 serialized pieces on the blade and box
    Box: cardboard, numbered, with ExtremaRatio logos and Coltelleria Collini

    TIROCK-C-BL
    €0.00
    Only -99 left
    Only -99 left
    Rating:
    100%
    5
    Out of stock
  46. ExtremaRatio - Ti-Rock Satin sanmai CoS - Titanium Grey - Limited Edition - folding knife

    A Coltelleria Collini Exclusive - Limited edition, available in only 33 serialized pieces


    Intended Use: collection / EDC / CQD

    Type of production: Industrial, Limited
    Blade: Japanese-rolled stainless steel (San Mai) with sharp CoS to 61,5HRC in cryogenic quenching; with fuller double concave in the strong blade
    Blade treatment: Satin finish
    Production Country: Italy
    Handle: Titanium, Billet, with full Frame Lock locking system with sash and secure removable made of stainless steel
    Blade length: 75mm.
    Blade Thickness: 6.3mm.
    Overall length: 180mm.
    Weight: 186g.
    Clips: stainless steel, reversible type deep pocket and port tip up
    Notes: Skull Crasher tapered shank engaged in - Edition limited and numbered edition in only 33 serialized pieces on the blade and box
    Box: cardboard, numbered, with ExtremaRatio logos and Coltelleria Collini

    TIROCK-C-GR
    €0.00
    Only -99 left
    Only -99 left
    Rating:
    93%
    4.7
    Out of stock
  47. ExtremaRatio - Ti-Rock Tactical Version - Limited Edition - knife

    Collectors Edition with:

    * Box of ABS branded laser
    * Tactical Kydex scabbard and leather, handcrafted
    * Attack Tek-Lok
    * Lanyard black paracord with custom anodized titanium wire stop with slogans and Extrema Ratio Knives Collini

    Only two specimens at our disposal: Number 4 of 100 and number 9 of 100

    This is a Collini Cutlery Exclusive - Only available in 100 serialized pieces

    Intended Use: collection / EDC / CQD
    Type of production: industrial, Limited
    Blade: N690 stainless steel in 58HRC with hollow ground fuller
    Blade Treatment: Black Testudo
    Blade Production: Italy
    Handle: Titanium machined from solid.
    Closing system: Frame Lock with swing and safe removable stainless steel
    Blade length: 75mm.
    Blade Thickness: 6.3mm.
    Overall length: 180mm.
    Weight: 190g.
    Clips: stainless steel, reversible, deep pocket, tip up
    Notes: Conical Skull Crasher engaged in the shank - Limited and serialized edition in only 100 pieces
    Box: Cardboard, serialized, with Extrema Ratio and Coltelleria Collini logos

    Ti-Rock-Collector
    €450.00
    Out of stock
  48. ExtremaRatio - Ti-Rock Tactical Version - Limited Edition - knife

    ** SOLD OUT - OUT OF STOCK AND OUT OF PRODUCTION ** 

     

    This is a Collini Cutlery Exclusive - Only available in 100 serialized pieces

    Intended Use: collection / EDC / CQD
    Type of production: industrial, Limited
    Blade: N690 stainless steel in 58HRC with hollow ground fuller
    Blade Treatment: Black Testudo
    Blade Production: Italy
    Handle: Titanium machined from solid.
    Closing system: Frame Lock with swing and safe removable stainless steel
    Blade length: 75mm.
    Blade Thickness: 6.3mm.
    Overall length: 180mm.
    Weight: 190g.
    Clips: stainless steel, reversible, deep pocket, tip up
    Notes: Conical Skull Crasher engaged in the shank - Limited and serialized edition in only 100 pieces
    Box: Cardboard, serialized, with Extrema Ratio and Coltelleria Collini logos

    Ti-Rock
    €323.77
    Rating:
    98%
    4.9
    Out of stock
  49. ExtremaRatio - BF1TK Folder - Training Knife

    Type of production: Industrial
    Blade: stainless steel 420
    Production Lama: Italy
    Handle: Anticorodal
    Blade length: 70mm.
    Blade Thickness: 3mm.
    Closed Length: 99mm.
    Overall length: 168mm.
    Balancing: -
    Weight: 90g.
    Lock: Liner Lock
    Clip: reversible and removable stainless steel
    Sheath: -
    Notes: Version training model BF1

    ER-BF1F-TK
    €63.93
    Only 0 left
    Only 0 left
    Rating:
    90%
    4.5
    Out of stock
  50. ExtremaRatio - BF M1A2 - Coltello Multiuso

    Tipo di produzione: industriale
    Lama: in acciaio inox N690Co 58HRC
    Produzione Lama: Italia
    Manicatura: Anticorodal
    Lunghezza lama: 70mm.
    Spessore della lama: 3mm.
    Lunghezza chiuso: 99mm.
    Lunghezza totale: 168mm.
    Bilanciatura: -
    Peso: 94g.
    Chiusura: Liner Lock
    Clip: reversibile ed amovibile in acciaio inox
    Fodero: -
    Note: Cacciavite, Caviglia Scioglinodi
    ER-BFM1A2
    €0.00
    Only -20 left
    Only -20 left
    Rating:
    100%
    5
    Out of stock
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