Knives, collection knife, tactical knives, outdoor knives, pocket knives and tools

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

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

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

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

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.

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.

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

Chiudibili Extrema Ratio:
Direttamente derivato da specifiche militari,questo apribile è stato sviluppato per sostituirenell'impiego un lama fissa.
Per raggiungere questo risultato sono stati impiegatimateriali robustissimi, alti spessori ed un sistema diapertura/chiusura solido e sicuro: il back lock.
Il coltello è dotato di sicura manuale che conferisce massima sicurezza nell'impiego e riduce in manieradrastica il rischio di chiusure accidentali.
La sicura, se inserita in chiusura, evita agli operatorimilitari o di polizia che nel caso di sottrazione il coltello possa essere rivolto contro di loro.

Materiali e lavorazioni:
Tutte le parti del coltello sono ricavate dal pieno da macchine a controllo numerico ad alta precisione mentre l'assemblaggio, l'aggiustaggio e l'affilatura sono condotte artigianalmente.
La lama è in acciaio inossidabile al cobalto N690,un acciaio dalle elevatissime caratteristiche di resistenza alle sollecitazioni meccaniche, capacità ditaglio, tenuta del filo e resistenza alla corrosione.L'arrotatura è piana e la durezza è di 58HRC.
Le guancette dell'impugnatura sono in Anticorodal, unalega di alluminio con elevate doti di resistenza alle sollecitazioni meccaniche ed all'ossidazione.
Il codolo, in N690 temprato, è un efficace frangi cristalli d'emergenza. Tutta la viteria, i perni e laclip sono in acciaio inox brunito. La lama, la leva edil codolo sono ricoperti con trattamento Testudo,molto resistente all'abrasione ed all'ossidazione.Le guancette sono anodizzate nere.

Destinazione d'uso: tattico/militare/backup

Lama: in acciaio Inox N690Co 58HRC
Manicatura: Anticorodal ruvido con spessore 4.5mm
Lunghezza lama: 115mm.
Spessore della lama: 6mm.
Lunghezza chiuso: 148
Lunghezza totale: 260mm.
Bilanciatura: -
Peso: 235g.
Chiusura: Back Lock
Clip: amovibile e reversibile in acciaio inox
Fodero: -
Note: fermo di sicurezza sia in apertura che in chiusura

Intended use: tactical / military / backup

Blade: stainless steel N690Co 58HRC
Handle: Anticorodal 4.5mm thick
Blade length: 95mm.
Blade thickness: 6mm.
Length closed: 127
Total length: 220mm.
Balancing: -
Weight: 200g.
Closure: Back Lock
Clip: removable and reversible in stainless steel
Sheath: -

Intended use: tactical / military / backup

Blade: Stainless Steel N690Co 58HRC Desert Warfare
Manicure: 4.5mm Thickness Anticorodal
Blade Length: 95mm.
Blade thickness: 6mm.
Closed length: 127
Total length: 220mm.
Balance: -
Weight: 200g.
Closing: Back Lock
Clip: Removable and reversible in stainless steel
Sheath: -
Notes: safety mechanism both in opening and closing

Directly derived from military specifications, this fold has been developed to replace a fixed blade in use.

To achieve this result, very strong materials, high thicknesses and a solid and safe opening and closing system were used: the back lock.
The knife is equipped with a manual safety device which confers maximum safety in use and reduces the risk of accidental closure in manieradrastica.
The safety device, if inserted in closing, prevents the knife from being turned against itself in the case of subtraction.

Materials and workmanship:

All parts of the knife are machined from high-precision CNC machines, while assembly, adjustment and sharpening are carried out by hand.
The blade is made of cobalt N690 stainless steel, a steel with very high resistance to mechanical stress, cutting capacity, thread strength and corrosion resistance. The grinding is flat and the hardness is 58HRC.
The grips of the handle are in Anticorodal, an aluminum alega with high resistance to mechanical stress and oxidation.
The tang, in hardened N690, is an effective emergency crystals. All screws, pins and clips are in burnished stainless steel. The blade, the lever and the shank are covered with Testudo treatment, very resistant to abrasion and oxidation. The cheeks are black anodized.

Intended use: tactical / military / backup

Blade: stainless steel N690Co 58HRC
Handle: Anticorodal thickness 4.5mm
Blade length: 95mm.
Blade thickness: 6mm.
Length closed: 127
Total length: 220mm.
Weight: 200g.
Closure: Back Lock
Clip: removable and reversible in stainless steel
Notes: safety mechanism both in opening and closing

Extrema Ratio - Kukri KL - Training Knife

Intended Use: Training
Production: Italy
Blade: Aluminium 6061 T6 Aviation
Treatment: Anodizing
Handle: Forprene
Sheath: -
Blade length: 340mm
Overall Length: 470mm
Blade thickness: 6mm
Weight: 296g.

Directly derived from military specifications, this folding was developed to replace a fixed blade in use.

To achieve this, very strong materials, high thicknesses and a solid and safe diaper opening / closing system were used.

The knife is equipped with a manual safety device that confers maximum safety in use and reduces the risk of accidental closures in a manual manner.
The safety device, if inserted in the closure, prevents the operators or police officers from turning the knife against them in the event of theft.

Materials and processes:
All the parts of the knife are machined from solid by high precision numerical control machines while assembly, adjustment and sharpening are done by hand.
The blade is made of N690 cobalt stainless steel, a steel with very high resistance to mechanical stress, cutting capacity, wire hold and corrosion resistance. The grinding is flat and the hardness is 58HRC.
The handle grips are made of Anticorodal, an aluminum alloy with high resistance to mechanical stress and oxidation.
The shank, in tempered N690, is an effective emergency crystal breaker. All the screws, pins and laclipes are in burnished stainless steel. The blade, the lever and the shank are covered with Testudo treatment, very resistant to abrasion and oxidation. The handles are black anodized.

Model: M.P.C.
Destination: General use
Lung. Total: 260 mm
Blade: 115 mm
Weight: 245 gr
Thick. Blade: 6 mm
Mat. Blade: N690 cobalt stainless steel
Handle: Anticorodal

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

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