Sport, Military and Collectible Knives | Coltelleria Collini

With thirty years of experience in designing professional knives, Extrema Ratio has developed a model designed for those seeking an everyday carry tool that combines functionality, lightness, and attention to detail.

The minimalist profile, clean lines, and light weight are not merely aesthetic choices for their own sake, but the result of a design focused on efficiency. Every element serves a specific purpose. Nothing has been added merely to impress; nothing is there without a reason.

AERO is built using materials selected to ensure reliability in daily use and minimal maintenance: an Anticorodal aluminum handle and a Nitrogen steel blade, prized for its corrosion resistance, edge retention, and ease of resharpening.

Intended Use: Sports / EDC

Production Type: Industrial
Country of Manufacture: Italy
Blade: Nitrogen steel
Blade Finish: MIL-C-13924 burnishing
Handle: Stainless steel scales with anodized anticorodal aluminum grip
Blade Length: 69mm.
Blade thickness: 2.3 mm.
Overall length: 173 mm.
Weight: 92 g.
Lock type: Liner Lock
Clip: -
Packaging: Cardboard box with Extrema Ratio logos
Notes: -

With thirty years of experience in designing professional knives, Extrema Ratio has developed a model designed for those seeking an everyday carry tool that combines functionality, lightness, and attention to detail.

The minimalist profile, clean lines, and light weight are not merely aesthetic choices for their own sake, but the result of a design focused on efficiency. Every element serves a specific purpose. Nothing has been added merely to impress; nothing is there without a reason.

AERO is built using materials selected to ensure reliability in daily use and minimal maintenance: an Anticorodal aluminum handle and a Nitrogen steel blade, prized for its corrosion resistance, edge retention, and ease of resharpening.

Intended Use: Sports / EDC

Production Type: Industrial
Country of Manufacture: Italy
Blade: Nitrogen steel
Blade Finish: MIL-C-13924 burnishing
Handle: Stainless steel scales with anodized anticorodal aluminum grip
Blade Length: 69mm.
Blade thickness: 2.3 mm.
Overall length: 173 mm.
Weight: 92 g.
Lock type: Liner Lock
Clip: -
Packaging: Cardboard box with Extrema Ratio logos
Notes: -

With thirty years of experience in designing professional knives, Extrema Ratio has developed a model designed for those seeking an everyday carry tool that combines functionality, lightness, and attention to detail.

The minimalist profile, clean lines, and light weight are not merely aesthetic choices for their own sake, but the result of a design focused on efficiency. Every element serves a specific purpose. Nothing has been added merely to impress; nothing is there without a reason.

AERO is built using materials selected to ensure reliability in daily use and minimal maintenance: an Anticorodal aluminum handle and a Nitrogen steel blade, prized for its corrosion resistance, edge retention, and ease of resharpening.

Intended Use: Sports / EDC

Production Type: Industrial
Country of Manufacture: Italy
Blade: Nitrogen steel
Blade Finish: MIL-C-13924 burnishing
Handle: Stainless steel scales with anodized anticorodal aluminum grip
Blade Length: 69mm.
Blade thickness: 2.3 mm.
Overall length: 173 mm.
Weight: 92 g.
Lock type: Liner Lock
Clip: -
Packaging: Cardboard box with Extrema Ratio logos
Notes: -

With thirty years of experience in designing professional knives, Extrema Ratio has developed a model designed for those seeking an everyday carry tool that combines functionality, lightness, and attention to detail.

The minimalist profile, clean lines, and light weight are not merely aesthetic choices for their own sake, but the result of a design focused on efficiency. Every element serves a specific purpose. Nothing has been added merely to impress; nothing is there without a reason.

AERO is built using materials selected to ensure reliability in daily use and minimal maintenance: an Anticorodal aluminum handle and a Nitrogen steel blade, prized for its corrosion resistance, edge retention, and ease of resharpening.

Intended Use: Sports / EDC

Production Type: Industrial
Country of Manufacture: Italy
Blade: Nitrogen steel
Blade Finish: MIL-C-13924 burnishing
Handle: Stainless steel scales with anodized anticorodal aluminum grip
Blade Length: 69mm.
Blade thickness: 2.3 mm.
Overall length: 173 mm.
Weight: 92 g.
Lock type: Liner Lock
Clip: -
Packaging: Cardboard box with Extrema Ratio logos
Notes: -

SATRE F è un chiudibile compatto pensato per uso quotidiano. Mantiene l’impostazione robusta della linea SATRE in un formato tascabile, con ingombri ridotti e portabilità reale. Sta in tasca senza dare fastidio, ma quando serve è pronto.

Apertura flipper rapida e controllabile con una mano. Struttura con doppia cartella in acciaio e blocco Liner-Lock: rigido, affidabile, senza giochi. La clip deep carry lo rende discreto in tasca. La fresatura sulla guancetta non è solo estetica: permette di identificare subito la variante anche da chiuso.

Le versioni in Böhler N690Co (Black, Stone Washed) puntano su resistenza all’usura e buona tenuta del filo, con manutenzione semplice. Le varianti in acciaio Nitrogen (Periwinkle, Orange, Yellow) privilegiano la resistenza alla corrosione, ideali per ambienti umidi o uso intensivo all’aperto. La versione Outdoor Nitrogen è la più orientata all’impiego sul campo.

Intended use: Sport / EDC

Production type: Industrial
Country of origin: Italy
Blade: Nitrogen steel
Blade finish: Stonewashed
Handle: Stainless steel liners with anodized Anticorodal handle scales
Blade length: 72 mm
Blade thickness: 3 mm
Overall length: 174 mm
Weight: 98 g
Locking mechanism: Liner Lock
Pocket clip: Removable and reversible, stainless steel
Packaging: Cardboard box with Extrema Ratio logos
Notes: Flipper opening system

SATRE F è un chiudibile compatto pensato per uso quotidiano. Mantiene l’impostazione robusta della linea SATRE in un formato tascabile, con ingombri ridotti e portabilità reale. Sta in tasca senza dare fastidio, ma quando serve è pronto.

Apertura flipper rapida e controllabile con una mano. Struttura con doppia cartella in acciaio e blocco Liner-Lock: rigido, affidabile, senza giochi. La clip deep carry lo rende discreto in tasca. La fresatura sulla guancetta non è solo estetica: permette di identificare subito la variante anche da chiuso.

Le versioni in Böhler N690Co (Black, Stone Washed) puntano su resistenza all’usura e buona tenuta del filo, con manutenzione semplice. Le varianti in acciaio Nitrogen (Periwinkle, Orange, Yellow) privilegiano la resistenza alla corrosione, ideali per ambienti umidi o uso intensivo all’aperto. La versione Outdoor Nitrogen è la più orientata all’impiego sul campo.

Intended use: Sport / EDC

Production type: Industrial
Country of origin: Italy
Blade: Nitrogen steel
Blade finish: MIL-C-13924 burnishing
Handle: Stainless steel liners with anodized Anticorodal handle scales
Blade length: 72 mm
Blade thickness: 3 mm
Overall length: 174 mm
Weight: 98 g
Locking mechanism: Liner Lock
Pocket clip: Removable and reversible, stainless steel
Packaging: Cardboard box with Extrema Ratio logos
Notes: Flipper opening system

SATRE F è un chiudibile compatto pensato per uso quotidiano. Mantiene l’impostazione robusta della linea SATRE in un formato tascabile, con ingombri ridotti e portabilità reale. Sta in tasca senza dare fastidio, ma quando serve è pronto.

Apertura flipper rapida e controllabile con una mano. Struttura con doppia cartella in acciaio e blocco Liner-Lock: rigido, affidabile, senza giochi. La clip deep carry lo rende discreto in tasca. La fresatura sulla guancetta non è solo estetica: permette di identificare subito la variante anche da chiuso.

Le versioni in Böhler N690Co (Black, Stone Washed) puntano su resistenza all’usura e buona tenuta del filo, con manutenzione semplice. Le varianti in acciaio Nitrogen (Periwinkle, Orange, Yellow) privilegiano la resistenza alla corrosione, ideali per ambienti umidi o uso intensivo all’aperto. La versione Outdoor Nitrogen è la più orientata all’impiego sul campo.

Intended use: Sport / EDC

Production type: Industrial
Country of origin: Italy
Blade: Nitrogen steel
Blade finish: MIL-C-13924 burnishing
Handle: Stainless steel liners with anodized Anticorodal handle scales
Blade length: 72 mm
Blade thickness: 3 mm
Overall length: 174 mm
Weight: 98 g
Locking mechanism: Liner Lock
Pocket clip: Removable and reversible, stainless steel
Packaging: Cardboard box with Extrema Ratio logos
Notes: Flipper opening system

SATRE F è un chiudibile compatto pensato per uso quotidiano. Mantiene l’impostazione robusta della linea SATRE in un formato tascabile, con ingombri ridotti e portabilità reale. Sta in tasca senza dare fastidio, ma quando serve è pronto.

Apertura flipper rapida e controllabile con una mano. Struttura con doppia cartella in acciaio e blocco Liner-Lock: rigido, affidabile, senza giochi. La clip deep carry lo rende discreto in tasca. La fresatura sulla guancetta non è solo estetica: permette di identificare subito la variante anche da chiuso.

Le versioni in Böhler N690Co (Black, Stone Washed) puntano su resistenza all’usura e buona tenuta del filo, con manutenzione semplice. Le varianti in acciaio Nitrogen (Periwinkle, Orange, Yellow) privilegiano la resistenza alla corrosione, ideali per ambienti umidi o uso intensivo all’aperto. La versione Outdoor Nitrogen è la più orientata all’impiego sul campo.

Intended use: Sport / EDC

Production type: Industrial
Country of origin: Italy
Blade: Nitrogen steel
Blade finish: MIL-C-13924 burnishing
Handle: Stainless steel liners with anodized Anticorodal handle scales
Blade length: 72 mm
Blade thickness: 3 mm
Overall length: 174 mm
Weight: 98 g
Locking mechanism: Liner Lock
Pocket clip: Removable and reversible, stainless steel
Packaging: Cardboard box with Extrema Ratio logos
Notes: Flipper opening system

The CIVIVI Merit C24012-3 is a stylish and functional knife with an overall length of 193.5 mm and a low weight of 76.7 g for easy carrying.

The 14C28N blade, with 58-60 HRC hardness, offers excellent corrosion resistance and a durable edge, while the Flat Grind and Satin finish ensure precision cutting. The purple Canvas Micarta handle, combined with gray steel liner, ensures a secure and comfortable grip.

Ceramic bearing system allows smooth opening, with liner lock for added security. The ambidextrous Tip-Up pocket clip completes a practical and refined design, ideal for those seeking performance and style in a lightweight EDC.

Intended Use: Sporty / EDC

Production Type: Industrial
Country of manufacture: China
Blade: 14C28N stainless steel
Blade finish: satin-finished
Handle: Micarta
Blade length: 83.2mm
Blade thickness: 2.0mm
Length closed: 110.3mm
Total length: 193.5mm
Closure: liner lock
Weight: 76.7g.
Clip: removable and reversible, stainless steel
Packaging: cardboard box with manufacturer's logos, nylon zippered pouch, manuals and warranties
Notes: carson flipper opening system on ceramic ball bearings

This is the “Dark Side” of the Blur. Like all Blurs, it features a large, slightly curved blade that is ideal for multitasking. The blade shape offers excellent cutting and piercing capabilities, and the high-performance 14C28N stainless steel offers corrosion resistance and hardness. The black Blur has a Cerakote-coated blade for corrosion resistance and a more attractive appearance.

Intended Use: Sporting/Tactical

Type of production: Industrial
Country of manufacture: USA
Blade: Sandvik 14C28N stainless steel
Blade treatment: Black Cerakote
Handle: 6061-T6 aircraft aluminum with non-slip insert
Blade length: 89mm.
Blade thickness: 3.1mm.
Length closed: 114mm.
Total length: 203mm.
Weight: 112g.
Closure: LinerLock
Clip: Removable and multi-position, made of Cerakote stainless steel
Packaging: cardboard box with Kershaw logos
Notes: Design by Ken Onion - Assisted opening system on bronze washers