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21 Items

  1. 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
  2. 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
  3. 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
  4. ExtremaRatio - N.K.3 Karambit Desert Warfare - Neck Knife - NK3K - knife

    NK3 is a small knife that extends the family of the neck knives Extrema Ratio.

    It differs from the models NK1 and NK2 for the largest size of the blade-type "long" 70mm. The ergonomic grip is designed so as to prevent accidental cuts during withdrawal from the scabbard.

    On the back it is formed a drain for the positioning of the thumb or index depending on use. The structure enables both use for work or cutting very effective for small precision work.

    The Kydex sheath is a quick release and is supplied to the port of paracord knife in his neck.

    intended use: Neck Knife
    type of production: Industrial
    production country: Italy
    Blade: stainless steel N690Co 58 / 60HRC
    Blade treatment: Desert Warfare
    manicatura: stainless steel N690Co 58 / 60HRC
    blade length: 70mm.
    blade thickness: 6.3mm.
    total length: 172mm.
    Weight: 95g.
    Sheath: Kydex, neck
    Package: Cardboard box with logos Extrema Ratio
    Notes: possibility of using the sheath with MOLLE systems or Tek-Lok (not included in the package)

    12636
    €163.11
    Only 98 left
    Only 98 left
  5. ExtremaRatio - N.K.3 Karambit Stone Washed - Neck Knife - NK3K - knife

    NK3 is a small knife that extends the family of the neck knives Extrema Ratio.

    It differs from the models NK1 and NK2 for the largest size of the blade-type "long" 70mm. The ergonomic grip is designed so as to prevent accidental cuts during withdrawal from the scabbard.

    On the back it is formed a drain for the positioning of the thumb or index depending on use. The structure enables both use for work or cutting very effective for small precision work.

    The Kydex sheath is a quick release and is supplied to the port of paracord knife in his neck.

    intended use: Neck Knife
    type of production: Industrial
    production country: Italy
    Blade: stainless steel N690Co 58 / 60HRC
    Blade treatment: Stone Washed
    manicatura: stainless steel N690Co 58 / 60HRC
    blade length: 70mm.
    blade thickness: 6.3mm.
    total length: 172mm.
    Weight: 95g.
    Sheath: Kydex, neck
    Package: Cardboard box with logos Extrema Ratio
    Notes: possibility of using the sheath with MOLLE systems or Tek-Lok (not included in the package)

    ER-NK3K-SW
    €152.46
    Only 1 left
    Only 1 left
    Rating:
    93%
    4.7
  6. ExtremaRatio - N.K.3 Karambit Black - Neck Knife - NK3K - knife

    NK3 is a small knife that extends the family of the neck knives Extrema Ratio.

    It differs from the models NK1 and NK2 for the largest size of the blade-type "long" 70mm. The ergonomic grip is designed so as to prevent accidental cuts during withdrawal from the scabbard.

    On the back it is formed a drain for the positioning of the thumb or index depending on use. The structure enables both use for work or cutting very effective for small precision work.

    The Kydex sheath is a quick release and is supplied to the port of paracord knife in his neck.

    intended use: Neck Knife
    type of production: Industrial
    production country: Italy
    Blade: stainless steel N690Co 58 / 60HRC
    Blade treatment: Black PVD cat. MIL-C-13924
    manicatura: stainless steel N690Co 58 / 60HRC
    blade length: 70mm.
    blade thickness: 6.3mm.
    total length: 172mm.
    Weight: 95g.
    Sheath: Kydex, neck
    Package: Cardboard box with logos Extrema Ratio
    Notes: possibility of using the sheath with MOLLE systems or Tek-Lok (not included in the package)

    ER-NK3K-BK
    €159.02
    Only 1 left
    Only 1 left
    Rating:
    91%
    4.6
  7. ExtremaRatio - N.K.3 Desert Warfare - Neck Knife - NK3 - knife

    NK3 is a small knife that extends the family of the neck knives Extrema Ratio.

    It differs from the models NK1 and NK2 for the largest size of the blade-type "long" 70mm. The ergonomic grip is designed so as to prevent accidental cuts during withdrawal from the scabbard.

    On the back it is formed a drain for the positioning of the thumb or index depending on use. The structure enables both use for work or cutting very effective for small precision work.

    The Kydex sheath is a quick release and is supplied to the port of paracord knife in his neck.

    intended use: Neck Knife
    type of production: Industrial
    production country: Italy
    Blade: stainless steel N690Co 58 / 60HRC
    Blade treatment: Black PVD cat. MIL-C-13924
    manicatura: stainless steel N690Co 58 / 60HRC
    blade length: 70mm.
    blade thickness: 6.3mm.
    total length: 153mm.
    Weight: 82g.
    Sheath: Kydex, neck
    Package: Cardboard box with logos Extrema Ratio
    Notes: possibility of using the sheath with MOLLE systems or Tek-Lok (not included in the package)

    ER-NK3-DW
    €146.72
    Only 1 left
    Only 1 left
  8. ExtremaRatio - N.K.3 Black - Neck Knife - NK3 - knife

    NK3 is a small knife that extends the family of the neck knives Extrema Ratio.

    It differs from the models NK1 and NK2 for the largest size of the blade-type "long" 70mm. The ergonomic grip is designed so as to prevent accidental cuts during withdrawal from the scabbard.

    On the back it is formed a drain for the positioning of the thumb or index depending on use. The structure enables both use for work or cutting very effective for small precision work.

    The Kydex sheath is a quick release and is supplied to the port of paracord knife in his neck.

    intended use: Neck Knife
    type of production: Industrial
    production country: Italy
    Blade: stainless steel N690Co 58 / 60HRC
    Blade treatment: Black PVD cat. MIL-C-13924
    manicatura: stainless steel N690Co 58 / 60HRC
    blade length: 70mm.
    blade thickness: 6.3mm.
    total length: 153mm.
    Weight: 82g.
    Sheath: Kydex, neck
    Package: Cardboard box with logos Extrema Ratio
    Notes: possibility of using the sheath with MOLLE systems or Tek-Lok (not included in the package)

    ER-NK3-BK
    €140.16
    Only 2 left
    Only 2 left
    Rating:
    100%
    5
  9. ExtremaRatio - N.K.3 Stone Washed - Neck Knife - NK3 - knife

    NK3 is a small knife that extends the family of the neck knives Extrema Ratio.

    It differs from the models NK1 and NK2 for the largest size of the blade-type "long" 70mm. The ergonomic grip is designed so as to prevent accidental cuts during withdrawal from the scabbard.

    On the back it is formed a drain for the positioning of the thumb or index depending on use. The structure enables both use for work or cutting very effective for small precision work.

    The Kydex sheath is a quick release and is supplied to the port of paracord knife in his neck.

    intended use: Neck Knife
    type of production: Industrial
    production country: Italy
    Blade: stainless steel N690Co 58 / 60HRC
    Blade treatment: Stone Washed
    manicatura: stainless steel N690Co 58 / 60HRC
    blade length: 70mm.
    blade thickness: 6.3mm.
    total length: 153mm.
    Weight: 82g.
    Sheath: Kydex, neck
    Package: Cardboard box with logos Extrema Ratio
    Notes: possibility of using the sheath with MOLLE systems or Tek-Lok (not included in the package)

    12450
    €132.79
    Only 1 left
    Only 1 left
    Rating:
    91%
    4.6
  10. ExtremaRatio - N.K.2 Black - Neck Knife - NK2

    NK2 is a small knife that extends the family of the Extrema Ratio neck knives.

    It differs from the model NK1 for blade tip tanto styled and for the increased thickness. The ergonomic grip is designed so as to prevent accidental cuts during withdrawal from the scabbard.

    On the back it is formed a drain for the positioning of the thumb or forefinger depending on use. The structure enables both use for very effective cutting work or for small precision work.The quick release Kydex sheath is supplied with paracord for carrying on the neck.

    Intended use: Neck Knife
    Type of production: Industrial
    Production country: Italy
    Blade: stainless steel N690Co 58 / 60HRC
    Blade treatment: Black PVD cat. MIL-C-13924
    Handle: stainless steel N690Co 58 / 60HRC
    Blade length: 50mm.
    Blade thickness: 6.3mm.
    Total length: 129mm.
    Weight: 69g.
    Sheath: Kydex, neck
    Package: Cardboard box with Extrema Ratio logo
    Notes: possibility of using the sheath with MOLLE systems or Tek-Lok (not included in the package)

    ER-NK2-BK
    €122.95
    Only 1 left
    Only 1 left
  11. ExtremaRatio - N.K.2 Stone Washed - Neck Knife - NK2

    NK2 is a small knife that extends the family of the neck knives Extrema Ratio.

    It differs from the model NK1 for blade-type "time" and for the increased thickness. The ergonomic grip is designed so as to prevent accidental cuts during withdrawal from the scabbard.

    On the back it is formed a drain for the positioning of the thumb or index depending on use. The structure enables both use for work or cutting very effective for small precision work.The Kydex sheath is a quick release and is supplied to the port of paracord knife in his neck.


    intended use: Neck Knife
    type of production: Industrial
    production country: Italy
    Blade: stainless steel N690Co 58 / 60HRC
    Blade treatment: Stone Washed
    manicatura: stainless steel N690Co 58 / 60HRC
    blade length: 50mm.
    blade thickness: 6.3mm.
    total length: 129mm.
    Weight: 69g.
    Sheath: Kydex, neck
    Package: Cardboard box with logos Extrema Ratio
    Notes: possibility of using the sheath with MOLLE systems or Tek-Lok (not included in the package)

    ER-NK2-SW
    €110.66
    Only 1 left
    Only 1 left
    Rating:
    87%
    4.4
  12. ExtremaRatio - N.K.1 Desert Warfare - Neck Knife

    Intended Use: Neck Knife

    Type of production: Industrial
    Production Blade: Italy
    Blade: Stainless steel N690Co 58/60HRC
    Treatment Blade: Desert Warfare
    Handle material: stainless steel N690Co 58/60HRC
    Blade length: 40mm.
    Blade thickness: 3mm.
    Length closed: -
    Overall length: 129mm.
    Thick when closed: -
    Balancing: -
    Weight: 55g.
    Closure: -
    Clip: -
    Sheath: Kydex, Neck
    Packaging: Cardboard box with logos Extrema Ratio
    Note: use of the sheath with MOLLE systems or Tek-Lok (not included in the package)

    ER-NK1-DW
    €127.05
    Only 1 left
    Only 1 left
    Rating:
    93%
    4.7
  13. ExtremaRatio - N.K.1 Stone Washed - Neck Knife

    Intended Use: Neck Knife

    Type of production: Industrial
    Production Blade: Italy
    Blade: Stainless steel N690Co 58/60HRC
    Treatment Blade: Stone Washed
    Handle material: stainless steel N690Co 58/60HRC
    Blade length: 40mm.
    Blade thickness: 3mm.
    Length closed: -
    Overall length: 129mm.
    Thick when closed: -
    Balancing: -
    Weight: 55g.
    Closure: -
    Clip: -
    Sheath: Kydex, Neck
    Packaging: Cardboard box with logos Extrema Ratio
    Note: use of the sheath with MOLLE systems or Tek-Lok (not included in the package)

    ER-NK1-SW
    €114.75
    Only 1 left
    Only 1 left
    Rating:
    87%
    4.4
  14. ExtremaRatio - N.K.1 Testudo - Neck Knife

    Intended Use: Neck Knife

    Type of production: Industrial
    Production Blade: Italy
    Blade: Stainless steel N690Co 58/60HRC
    Treatment Blade: Testudo
    Handle material: stainless steel N690Co 58/60HRC
    Blade length: 40mm.
    Blade thickness: 3mm.
    Length closed: -
    Overall length: 129mm.
    Thick when closed: -
    Balancing: -
    Weight: 55g.
    Closure: -
    Clip: -
    Sheath: Kydex, Neck
    Packaging: Cardboard box with logos Extrema Ratio
    Note: use of the sheath with MOLLE systems or Tek-Lok (not included in the package)

    ER-NK1-BK
    €123.77
    Only 1 left
    Only 1 left
    Rating:
    100%
    5
  15. 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
  16. 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 0 left
    Only 0 left
    Rating:
    83%
    4.2
    Out of stock
  17. 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 0 left
    Only 0 left
    Rating:
    94%
    4.7
    Out of stock
  18. ExtremaRatio & Knives.it - Tengu Tactical - Icepick Karambit - knife

    THE BRAND
    Exclusive collaboration between Coltelleria Collini and Extrema Ratio marketed under the brand KNIVES.IT. 

    TECHNICAL DATA SHEET
    Intended Use: Collection / Tactical / Neck knife
    Production type: Industrial
    Country of Production: Italy
    Blade: Stainless steel N690Co 58/60HRC
    Blade finish: Black PVD cat. MIL-C-13924
    Handle: Stainless steel N690Co 58/60HRC
    Blade length: 40mm.
    Blade thickness: 5.5mm.
    Total lenght: 166mm.
    Weight: 86g.
    Sheath: optional (available separately) in Kydex, handcrafted by the Italian Knife Maker Simone Tonolli.
    Package: cardboard box with Extrema Ratio logos
    Notes: knife created and manufactured by Extrema Ratio - each knife is numbered - Design by LoTactical

    HISTORY
    The Tengu takes its name from a mythical creature of Japanese folklore that is represented with both human and raven features, they had the reputation of being great warriors and legends say that some founders of martial arts were trained by them.

    - It is designed to be used in many different grips, but is especially effective in the reverse grip.
    - Designed to be carried in a variety of ways, whether as a neck knife, under shirt, clipped in a pocket or around the waist using optional systems such as Ulti-Clip or Tek-Lok or various M.O.L.L.E. type attachments.
    - With its thickness of 5.5 mm. is extremely robust and thanks to the shape of the handle is comfortable even by those with large hands or those who want to use it with tactical gloves.
    - The blade is compact, robust and very functional for both precision cutting and hard materials thanks to the serrated part on the back. The tanto-shaped tip is very robust and optimal for engraving work.

    ER-TENGU
    €0.00
    Only -50 left
    Only -50 left
    Rating:
    100%
    5
    Out of stock
  19. ExtremaRatio - N.K.1 Neck Knife - SanMai V-TOKU2 - Limited Edition - NK1 - Knife

    Japanese steel merges with Italian excellence

    For this 2021 collaboration, exclusive to Coltelleria Collini, we have decided to propose a series of best sellers produced by Extrema Ratio. Knives made with the famous San Mai steel produced by the Japanese Takefu Steel. Specifically we have used the carbonaceous V-Toku2 at 62/63HRC for the central plate and the stainless SUS410 for the two external plates, in order to guarantee a very high cutting capacity, penetration and edge holding together with an easy resharpening and maintenance but at the same time the blade has a remarkable resistance to corrosion and an important increase of resilience given by the type of extreme steel and the laminated structure.

     

    Intended Use: Neck Knife / Collector's Knife

    Type of production: Industrial
    Country of Production: Italy
    Blade / Handle: Full, laminated Japanese steel (San Mai) with V-Toku2 (carbonaceous) cutting edge at 62/63HRC and SUS410 (stainless steel) outer cheeks
    Blade finish: Satin finish
    Blade length: 40mm.
    Blade thickness: 3mm.
    Total length: 129mm.
    Weight: 55g.
    Sheath: Kydex, for neck.
    Packaging: Cardboard box with Extrema Ratio logos.
    Notes: Numbered edition - cardboard box with Extremaratio logos and certificate - the central core of the blade and handle is made of carbon steel so it is recommended to wash/dry the knife very well after each use and protect the steel, during storage, with a light surface of lubricant to avoid rust and oxidation.

     

     

    As in the ancient swords of the Japanese Samurai.

    The rolled steel - imported in Italy by Collini Steel directly from the Japanese Takefu Steel - is based on the ancient Japanese tradition in the creation of the famous Samurai swords. As early as 1100, expert Japanese blacksmiths combined different materials to give Katana swords incredible cutting capabilities combined with previously unknown strength and flexibility. It is thanks to this revolutionary construction technique that the Samurai swords have been preserved until our days becoming one of the most fascinating objects made by man. Following this tradition applied to modern metallurgy, we are now able to have technologically advanced steels already tested and used in cutlery also by famous brands such as Fallkniven, Cold Steel, Mcusta, Kai, Sog, Zwilling, Rockstead, etc.

    Characteristics of San Mai steel: It is made of different types of metals alloyed together to create a composite that contains and intensifies the strengths of the metals individually taken:

    - Longer cutting edge life
    thanks to the use of high quality steels with a high carbon content (VG10, CoS, Shiro) or sintered (SPG2), in the core steel, the blade, once hardened, reaches hardness and cutting performance decidedly superior to those achieved with the use of traditional steels.

    - Greater resilience
    Built on the principle of Japanese swords, the multilayer steel is difficult to break thanks to the toughness of the central steel (Core Steel) and the elasticity of the steel used for the lateral coating (Stainless Steel).

    - Improved corrosion resistance
    The steel used for the outer layers (Stainless Steel) gives the blade a high resistance to corrosion. The combination of the two or more materials used by Takefu Steel generates, at a galvanic level, a structure that improves corrosion resistance even on the edge.

    - Easy machining even after heat treatment
    Although steel normally becomes harder after hardening, the lateral steel used in multilayer machining does not lose its softness and allows easy machining, drilling or welding even after heat treatment. For optimum blade performance, cryogenic treatment is recommended.

    - Improved aesthetic performance
    Knives made of multi-state steel or damask pattern at the end of the processing are aesthetically elegant, refined and highly appreciated by collectors all over the world.

    ER-NK1-CC
    €0.00
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    Rating:
    100%
    5
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  20. Knives.it by Simone Tonolli - Kydex Deep Carry sheath for Tengu Tactical knife - knife accessories

    Project born with the brand of Collini KNIVES.IT cutlery

    Custom Kydex sheath, made by Simone Tonolli, designed as an additional replacement for the Tengu knife

    Type of production: Custom
    Country of production: Italy
    Material: thermoformed Kydex
    Type of sheath: in "taco" format, with 8 steel rivets, designed for concealed carry or deep carry
    Length: 165mm.
    Width: 43mm.
    Thickness: 8mm.
    Weight: 25g.
    Packaging: -
    Notes: clip or coupling system not present / not supplied, sold separately, compatible with systems such as Ulti-Clip or M.O.L.L.E.
    Compatibility: compatible only with the TENGU model by Coltelleria Collini, Knives.it, created in collaboration with Extrema Ratio

    KN-TENGU-K
    €0.00
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    5
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  21. 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
    Out of stock
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