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16 Items

  1. ExtremaRatio - Police I knife - Multi-purpose 2 blades - PRIVATE COLLECTION - knife

    KNIFE RETIRED FROM PRIVATE COLLECTION
    * Type: Previously Purchased
    * Condition: In very good condition
    * Commercially available NO
    * Sharpness: Original
    * Marks on blade: NO
    * Marks on handle: NO
    * Packaging: YES
    * Checked and Certified by our internal laboratory

    Type of production: Industrial
    Country of production: Italy
    Blade: in N690Co stainless steel
    Finish: Testudo burnishing
    Handle: Anodized aeronautical aluminum anticorodal
    Blade length: 85mm.
    Blade thickness: 2.5mm.
    Total length: 210mm.
    Weight: 152g.
    Sheath: -
    Packaging: Cardboard box with Extrema Ratio logos and manufacturer's certificates
    Notes: emergency blade with snap opening (length. 8 cm) - glass breaker - model from 2013 now out of production

    ER-AP-POLICE
    €258.20
    Only 1 left
    Only 1 left
  2. 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
  3. 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
  4. 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
  5. 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
  6. ExtremaRatio - BF0 R CD 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 keeps all the features of the BF0 updated with the new High Speed Razor Opening opening system. Available in the following versions: BF0 R CD Desert with stone washed blade and HCS and BF0 R CD Stone Washed with stone washed blade and black grip.

    Type of production: industrial
    Blade: stainless steel N690Co 58HRC
    Country of production: Italy
    Handle: Nylon with stainless steel folders
    Blade length: 55mm.
    Blade thickness: 2.5mm.
    Length closed: 85mm.
    Total length: 140mm.
    Weight: 53g.
    Closure: Liner Lock
    Clip: reversible and removable, in stainless steel

    ER-BF0R-HCS
    €79.51
    Only 1 left
    Only 1 left
  7. ExtremaRatio - BF0CD - Stone Washed - knife

    Type of production: Industrial
    Blade: N690Co 58HRC stainless steel
    Country of production: Italy
    Handle: Nylon
    Blade length: 55mm.
    Blade Thickness: 2.5mm.
    Closed Length: 85mm.
    Overall length: 140mm.
    Weight: 75g.
    locking system: Liner Lock
    Clip: reversible and removable, stainless steel

    ER-BF0-SW
    €79.51
    Only 1 left
    Only 1 left
    Rating:
    95%
    4.8
  8. LoneWolf - Loveless City knife - Snakewood - knife

    Intended use: Pocket knife

    Type of production: industrial
    Blade: 19C27 stainless steel
    Blade treatment: -
    Handle: snakewood
    Blade length: 60mm.
    Blade thickness: 2.5mm.
    Length closed: 95mm.
    Total length: 160mm.
    Balancing: -
    Weight: 65g.
    Closing: -
    Clip: -
    Notes: aluminum box

    LW-SN
    €90.16
    Out of stock
  9. ExtremaRatio - Police I knife - Multi-purpose 2 blades - knife

    Intended use: Emergency and survival multi-purpose knife

    Type of production: Industrial
    Country of production: Italy
    Blade: N690Co stainless steel
    Finish: Testudo burnishing
    Handle: anticorodal anodized aluminum
    Blade length: 85mm.
    Blade thickness: 2.5mm.
    Total length: 210mm.
    Weight: 152g.
    Sheath: -
    Packaging: Cardboard box with Extrema Ratio logos and manufacturer's certificates
    Notes: emergency blade with snap opening (length 8 cm) - window breaker - 2013 model now out of production

    ER-POLICE
    €196.72
    Only -99 left
    Only -99 left
    Rating:
    100%
    5
    Out of stock
  10. Koji Hara - Bamboo Motif - Dagger Gentleman in Mother of Pearl - artisan knife

    Intended use: Collection / Gentleman

    Type of production: Artisan
    Lama production: Japan
    Blade: Cowry-Y stainless steel
    Blade treatment: -
    Handle: Mother of Pearl
    Blade length: 87mm.
    Blade thickness: 2.5mm.
    Length closed: -
    Total length: 195mm.
    Thick when closed: 11mm.
    Balancing: -
    Weight: 82g.
    Closure: Liner Lock
    Clip: -
    Sheath: -
    Package: -
    Notes: model entirely handmade by Master Koji Hara

    koji-hara
    €729.51
    Out of stock
  11. ExtremaRatio - BF0 R CD - 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 keeps all the features of the BF0 updated with the new High Speed Razor Opening opening system. Available in the following versions: BF0 R CD Desert with stone washed blade and HCS and BF0 R CD Stone Washed with stone washed blade and black grip.

    Type of production: industrial
    Blade: stainless steel N690Co 58HRC
    Country of production: Italy
    Handle: Nylon with stainless steel folders
    Blade length: 55mm.
    Blade thickness: 2.5mm.
    Length closed: 85mm.
    Total length: 140mm.
    Weight: 53g.
    Closure: Liner Lock
    Clip: reversible and removable, in stainless steel

    ER-BF0R-SW
    €79.51
    Only 0 left
    Only 0 left
    Out of stock
  12. 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
  13. 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
  14. Koji Hara - Gentleman Madreperla - coltello artigianale

    Destinazione d'uso: Collezione/Gentleman

    Tipo di produzione: Artigianale
    Produzione Lama: Giappone
    Lama: In acciaio inox Cowry-Y
    Trattamento Lama: -
    Manicatura: Madreperla e acciaio inox 316
    Lunghezza lama: 60mm.
    Spessore lama: 2.5mm.
    Lunghezza chiuso: -
    Lunghezza totale: 81mm.
    Spessore da chiuso: 9mm.
    Bilanciatura: -
    Peso: 60g.
    Chiusura: Liner Lock
    Clip: -
    Fodero: -
    Confezione: -
    Note: Inserti in madreperla sul dorso del coltello - modello interamente realizzato a mano dal Maestro Koji Hara

    9014
    €770.49
    Out of stock
  15. LoneWolf - Loveless City - Buffalo Horn

    Destinazione d'uso: coltello da tasca

    Tipo di produzione: industriale
    Lama: in acciaio inox 19C27
    Trattamento Lama: -
    Manicatura: Corno di Bufalo
    Lunghezza lama: 60mm.
    Spessore della lama: 2.5mm.
    Lunghezza chiuso: 95mm.
    Lunghezza totale: 160mm.
    Bilanciatura: -
    Peso: 65g.
    Chiusura: -
    Clip: -
    Fodero: -
    Note: scatola in alluminio
    1320
    €105.74
    Out of stock
  16. LoneWolf - Loveless City - Micarta knife

    LoneWolf - Loveless City - Micarta knife

    Intended use: Pocket Knife

    Type of production: industrial
    Blade: stainless steel 19c27
    Treatment Blade: -
    Handle: micarta loveless
    Blade length: 60mm.
    Blade Thickness: 2.5mm.
    Closed Length: 95mm.
    Overall length: 160mm.
    Balancing: -
    Weight: 65g.
    Closure: -
    Clip: -
    Notes: aluminum box

    1318
    €90.16
    Out of stock
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