Sport, Military and Collectible Knives | Coltelleria Collini

The Fox Spora mushroom picking knife was designed specifically to handle the delicate nature of mushroom stems, thereby making the harvesting process easier.

With its specially designed blade, it allows for a precise cut of the stems without damaging the mycelium—the delicate, root-like fibers from which a new mushroom can grow. Additionally, the retractable brush makes it easy to clean debris from the mushroom before storing it.

The attractive design and carrying clip make the knife practical and always ready for use during mushroom foraging trips.

Intended Use: Mushroom Knife

Country of Manufacture: Italy
Blade: Sandvik 12C27 stainless steel
Handle: deer antler
Blade Length: 65 mm.
Blade thickness: 3 mm.
Closed length: 110 mm.
Overall length: 175 mm.
Weight: 119 g.
Closure: Liner Lock
Clip: -
Sheath: -
Notes: Retractable nylon brush - Design by Riccardo Gobbato / Raven Knives Design

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

Features
* Flipper-assisted opening for quick blade deployment.
* IKBS ball bearing system ensures smooth blade opening.
* Sandvik 12C27 steel blade for excellent edge retention
* Brown Micarta handle with stainless steel reinforcements that combine strength and aesthetic appeal
* Liner lock mechanism that can be easily closed with one hand
* Low-profile pocket clip for safe carrying

Intended Use: Sporting

Production Type: Industrial
Country of Production: China
Blade: Sandvik 12C27 stainless steel
Blade treatment: Blackwashed
Handle: Micarta and Stainless Steel
Blade Length: 84.5mm.
Blade thickness: 3.2mm.
Length closed: 102mm.
Total length: 184mm.
Weight: 108g.
Closure: Liner Lock
Clip: stainless steel, removable
Packaging: cardboard box with CRKT logos
Notes: Design by Folts - Assisted opening via Carson Flipper system and IKBS movement on ball bearings

The smaller version of the popular CEO folding knife, the Microflipper combines refined style with maximum practicality. It may be small, but it's a serious contender for any job thanks to its lightweight aluminum handle and razor-sharp blade made of Sandvik 12C27™ steel.

This stylish pocket knife is available in two versions: drop-point blade with silver aluminum handle and blue coating, or sheepfoot blade with blue aluminum handle and silver coating.

* Superior performance: Sandvik 12C27™ steel for excellent edge retention.
* Smooth opening: IKBS™ ball-bearing motion allows smooth blade opening.
* Fast opening: Flipper opening system deploys the blade quickly.
* Sturdy and lightweight: Aluminum handle combines strength and minimal weight
* Easy closing: The blade can be easily closed with one hand.
* Carrying options: Adjustable ambidextrous clip for carrying in left or right pocket



Intended Use: EDC / Sporting

Production Type: Industrial
Country of Production: China
Blade: Sandivk 12C27 stainless steel
Blade Finish: Satin finish
Handle: Aluminum
Blade length: 56mm.
Blade thickness: 2.2mm.
Length closed: 82mm.
Total length: 140mm.
Weight: 48g.
Closure: Liner Lock
Clip: stainless steel, removable and reversible
Packaging: cardboard box with CRKT logos
Notes: Design by Richard Rogers - Carson Flipper opening system on IKBS ball bearings

The smaller version of the popular CEO folding knife, the Microflipper combines refined style with maximum practicality. It may be small, but it's a serious contender for any job thanks to its lightweight aluminum handle and razor-sharp blade made of Sandvik 12C27™ steel.

This stylish pocket knife is available in two versions: drop-point blade with silver aluminum handle and blue coating, or sheepfoot blade with blue aluminum handle and silver coating.


* Superior performance: Sandvik 12C27™ steel for excellent edge retention.
* Smooth opening: IKBS™ ball-bearing motion allows smooth blade opening.
* Fast opening: Flipper opening system deploys the blade quickly.
* Sturdy and lightweight: Aluminum handle combines strength and minimal weight
* Easy closing: The blade can be easily closed with one hand.
* Carrying options: Adjustable ambidextrous clip for carrying in left or right pocket




Intended Use: EDC / Sporting

Production Type: Industrial
Country of Production: China
Blade: Sandivk 12C27 stainless steel
Blade Finish: Satin finish
Handle: Aluminum
Blade length: 60mm.
Blade thickness: 2.2mm.
Length closed: 82mm.
Total length: 143mm.
Weight: 48g.
Closure: Liner Lock
Clip: stainless steel, removable and reversible
Packaging: cardboard box with CRKT logos
Notes: Design by Richard Rogers - Carson Flipper opening system on IKBS ball bearings

Intended use: Mushroom knife

Blade: 12C27 stainless steel
Handle: Eucalyptus wood
Blade length: 65mm.
Blade thickness: 3mm.
Closed length: 110mm.
Total length: 175mm.
Balancing: -
Weight: 98g.
Closure: Liner Lock
Clip: in stainless steel
Sheath: -
Notes: Resealable Nylon Brush - Design by Riccardo Gobbato

Destinazione d'uso: sportivo/gentleman

Tipo di produzione: industriale
Produzione Lama: Italia
Lama: in acciaio inox Sandvik 12C27
Finitura lama: Satinatura
Manicatura: in Cocobolo, con liners annegati in acciaio inox
Lunghezza lama: 49mm.
Spessore della lama: 3mm.
Lunghezza chiuso: 75mm.
Spessore da chiuso: 12mm.
Lunghezza totale: 125mm.
Bilanciatura: -
Peso: 60g.
Chiusura: Liner Lock
Clip: -
Fodero: astuccio in pelle nera
Note: design by Fabrizio Silvestrelli