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

Intended use: Chopper / Machete

Type of production: Industrial
Production Lama: Italy
Blade: stainless steel, hardened to 54HRC N690Co
Treatment Lama: Testudo
Handle: Forprene
Blade length: 280mm.
Blade thickness: 4mm.
Length closed: -
Overall length: 450mm.
Thick when closed: -
Balancing: -
Weight: 370g.
Closing: -
Clip: -
Sheath: Nylon with attacks belt and MOLLE type
Packaging: Cardboard box with logos Extrema Ratio
Notes: Studied and designed to sever the thick vegetation broadleaf, typical of tropical forests and rainforests.

Glauca G1, an evolution of the Glauca model, has specific features designed especially for the renowned GSG9 department, a special unit of the Bundespolizei, which has officially adopted it. The handle, made of anodized anticorodal aluminum with tactical mud coloring, is equipped with a tungsten carbide rear glass breaker.

On the back are a stainless steel nail stripper that can be locked in the open position and a resealable rescue tool that allows the operator to make a quick emergency cut to free a possible casualty from their clothing. This second tool is also great for use as a belt cutter.

The blade locking system is the proven LINER-LOCK to which is added a second safety mechanism to be operated manually.

Production type: Industrial

Country of manufacture: Italy
Blade: N690Co stainless steel
Blade Treatment: Burnishing MIL-C-13924
Handle: Anticorodal
Blade Length: 112mm.
Blade thickness: 4mm.
Length closed: 158mm.
Total length: 270mm.
Thickness when closed: 17mm.
Weight: 225g.
Closure: Liner Lock with additional side safety
Clip: Removable, burnished stainless steel
Packaging: Cardboard box with Extrema Ratio logos
Notes: Rear window breaker - Stainless steel nail striker - Reclosable cutting rescue tool 

Thanks to its structure, RAO C is a tool that despite its small size, manages to guarantee the same qualities of robustness and reliability as its big brother while offering better portability and manageability.

The locking mechanism on opening is particularly strong as it is assisted by a safety system that turns it into a true fixed blade. The primary safety on the blade is activated by raising and lowering the locking pin. To provide the user with maximum safety in use, a practical and quick secondary safety has been applied, which can be activated simply by moving the locking pin horizontally.

For the purpose of lightening the steel frames, a template was laser-cut from the profile of the RAO C, which was then used to make a gadget that is delivered with the knife.


Intended use: hiking/tactical

Type of production: industrial
Country of production: Italy
Blade: stainless steel N690Co 58HRC
Blade Finish: Burnishing MIL-C-13924
Handle: anticorodal anodized with hard oxidation
Blade length: 100mm.
Blade thickness: 4mm.
Length closed: 132mm.
Total length: 225mm.
Weight: 239g.
Closure: modified front lock, with push-button aditional safety.
Notes: keychain gadget, with miniature profile of the knife

Thanks to its structure, RAO C is a tool that despite its small size, manages to guarantee the same qualities of robustness and reliability as its big brother while offering better portability and manageability.

The locking mechanism on opening is particularly strong as it is assisted by a safety system that turns it into a true fixed blade. The primary safety on the blade is activated by raising and lowering the locking pin. To provide the user with maximum safety in use, a practical and quick secondary safety has been applied, which can be activated simply by moving the locking pin horizontally.

For the purpose of lightening the steel frames, a template was laser-cut from the profile of the RAO C, which was then used to make a gadget that is delivered with the knife.


Intended use: hiking/tactical

Type of production: industrial
Country of production: Italy
Blade: stainless steel N690Co 58HRC
Blade Finish: Burnishing MIL-C-13924
Handle: anticorodal anodized with hard oxidation
Blade length: 100mm.
Blade thickness: 4mm.
Length closed: 132mm.
Total length: 225mm.
Weight: 239g.
Closure: modified front lock, with push-button aditional safety.
Notes: keychain gadget, with miniature profile of the knife

This line of knives fits between the Basic Folders series and the Heavy Folders series. The typical mechanism of the series is the LINER-LOCK. The overall structure is robust. All knives in the MF series have a rear glass breaker. They also feature the innovation of the adjusting locknut on the blade fixing pivot.

By removing the locknut it is possible to tighten or loosen the central pivot as desired, to achieve the desired opening fluidity. It will be enough to lock the pivot screw with the locknut to fix the adjustment. The hemispherical milling on the handles facilitate the change of grip from "saber grip" to "reverse grip". The clip is reversible.

The BC (Belt Cutter) version features a rear seatbelt cutter with an easily obtainable and replaceable industrial cutter blade. In addition, a slotted screwdriver is inserted inside the handle that allows for the adjustment and calibration of firearm optics. This version is produced with a rough grip to offer a better grip.

Intended use: Tactical

Type of production: Industrial
Blade production: Italy
Blade: Stainless steel N690Co 58HRC
Blade treatment: Testudo
Handle: Anticorodal
Blade length: 95mm.
Blade thickness: 4mm.
Closed length: 134mm.
Total length: 225mm.
Thickness when closed: 24mm.
Balance: -
Weight: 165g.
Closure: Liner Lock
Clip: Stainless Steel
Sheath: -
Packaging: Black cardboard box with Extrema Ratio logos
Notes: -

Knife withdrawn from private collection. Overall in good condition has a number of surface scratches on the blade, small marks on the clip. Complete with cardboard box. Checked, certified and re-sharpened by our in-house laboratory Coltelleria Collini. 

Intended Use: Tactical/Sportsman

Type of production: Industrial
Country of Production: Italy
Blade: Stainless steel N690Co 58HRC
Blade Treatment: Testudo MIL-C-13924
Handle: Anticorodal
Blade Length: 68mm.
Blade thickness: 4mm.
Length closed: 110mm.
Total length: 181mm.
Thickness when closed: 23mm. (15mm without clip)
Weight: 139g.
Closure: Liner Lock with additional safety catch
Clip: Stainless Steel
Packaging: black cardboard box with Extrema Ratio logos and certificate

Takefu Knives Village is a brand born in 1991 in Echizen Fukui, a city in Japan famous since 1400 for the production of knives.

The Takefu knives brand is based on the union of 10 local artisans who forge each knife by hand

Characteristics of the knife: Mr. Masanobu Okada

Use: collection / sports

Blade: three-layer clad steel with a 62 / 63HRC Shirogami cutting edge
Lama origin: Japan
Handle: black paracord
Packaging: -
Blade length: 60mm
Total length: 165mm
Blade thickness: 4mm
Production: artisanal
Weight: 79g

Sheath: in kydex handcrafted by Simone Tonolli

Takefu Knives Village is a brand born in 1991 in Echizen Fukui, a city in Japan famous since 1400 for the production of knives.

The Takefu knives brand is based on the union of 10 local artisans who forge each knife by hand

Characteristics of the knife: Mr. Masanobu Okada

Use: collection / sports

Blade: three-layer clad steel with a 62 / 63HRC Shirogami cutting edge
Lama origin: Japan
Handle: black paracord
Packaging: -
Blade length: 75mm
Total length: 190mm
Blade thickness: 4mm
Production: artisanal
Weight: 114g

Sheath: in kydex handcrafted by Simone Tonolli

Takefu Knives Village is a brand born in 1991 in Echizen Fukui, a city in Japan famous since 1400 for the production of knives.

The Takefu knives brand is based on the union of 10 local artisans who forge each knife by hand

Characteristics of the knife: Mr. Masanobu Okada

Use: collection / sports

Blade: three-layer clad steel with a 62 / 63HRC Shirogami cutting edge
Lama origin: Japan
Handle: black paracord
Packaging: -
Blade length: 60mm
Total length: 167mm
Blade thickness: 4mm
Production: artisanal
Weight: 78g

Sheath: in kydex handcrafted by Simone Tonolli

Takefu Knives Village is a brand born in 1991 in Echizen Fukui, a city in Japan famous since 1400 for the production of knives.

The Takefu knives brand is based on the union of 10 local artisans who forge each knife by hand

Characteristics of the knife: Mr. Masanobu Okada

Use: collection / sports

Blade: three-layer clad steel with a 62 / 63HRC Shirogami cutting edge
Lama origin: Japan
Handle: black paracord
Packaging: -
Blade length: 65mm
Total length: 165mm
Blade thickness: 4mm
Production: artisanal
Weight: 83g

Sheath: in kydex handcrafted by Simone Tonolli

The Extrema Ratio Misericordia was adopted by the 4th Alpine Paratroopers Regiment which helped develop and test the product. It is a tactical fixed blade knife, extremely light and compact, it can be used both as a main knife or as a backup blade.

The blade is made of Böhler N690 steel, heat-treated to a hardness of 58 HRc, it is 118 mm long, 4mm thick and has a flat edge.

The profile is of the spear point type, with a full length fuller which makes the blade even lighter and with a false counter-thread at ¾ length. The blade is available with the classic Extrema Ratio MIL-C-13924 black finish.

The handle in fiberglass-reinforced nylon (FRN) features the classic Extrema Ratio recesses that make the grip safer and is fixed to the tang by means of a through screw.

On the rear end the handle flows connecting with a large ring, which allows the use of martial arts techniques and ensures a very solid grip to the hand, equipped with a "skull crusher" appendix in hard metal.

The overall weight of the knife is just 87g. Being a knife designed for professional use, much attention has been paid to ease of port, accessibility and extraction in case of need. The knife is secured to the sheath by a quick-release safety catch that can be easily reversed for use by left-handers.

The sheath is made of highly resistant Nylon, it is very versatile and two adjustable loops allow it to be fixed inside the loops of M.O.L.L.E.

The sheath is equipped with a conical invitation to facilitate the re-insertion of the knife while a simple pressure on the trigger safety allows it to be extracted quickly and instinctively.

Intended use: Tactical / Multirole

Type of production: Industrial
Country of production: Italy
Blade: in N690Co stainless steel hardened to 58HRC
Blade treatment: MIL-C-13924 burnishing
Handle: Forprene
Blade length: 118mm.
Blade thickness: 4mm.
Total length: 233mm.
Weight: 87g.
Sheath: in Nylon with two multi-position clips, designed for M.O.L.L.E.
Packaging: Cardboard box with Extrema Ratio logos
Notes: Rear Skull Crasher - Adopted by the 4th Alpine Paratroopers Regiment.

Folding knife developed together with the experts of the Department Jagdkommando materials, the special strength of the Austrian army. It has a tip designed to allow maximum penetration. It is equipped with a rear evacuation hammer, clip applicable in three positions and lateral secure. The handle is made with a particular finish for a better grip during use. The sheath desert kydex with hooking for M.O.L.L.E. system, allows storing the knife blade to open.

Type of production: Industrial
Production Country: Italy
Blade: stainless steel N690Co
Blade treatment: burnishing MIL-C 13924
Handle: rough anticorodal
Blade length: 110mm.
Blade thickness: 4mm.
Closed Length: 158mm
Overall length: 268mm.
Thickness when closed: 15mm.
Weight: 198g.
Lock: Liner Lock with secure additional
Clip: Removable, stainless steel
Sheath: Kydex, compatible with MOLLE attacks
Packaging: Cardboard box with Extrema Ratio logos
Notes: Rear glass breaker

With the T4000 C continues the purest series so Extrema Ratio, for lovers of the profile of Japanese blades that do not want to give up the accessories typically tactical as sheath and handle.

Intended use: Tactical / Backup

Type of production: Industrial
Production Country: Italy
Blade: stainless steel Bohler N690Co to 58HRC
Treatment blade: Browning MIL-C-13924
Handle: Forprene
Blade length: 174mm.
Blade thickness: 4mm.
Length closed: -
Overall length: 304mm.
Thick when closed: -
Balancing: -
Weight: 264g.
Closing: -
Clip: -
Sheath: Nylon
Packaging: Cardboard box with logos Extrema Ratio
Notes: -

This knife is a Collini Cutlery exclusive edition, the one and only Karambit blade ever made by Extrema Ratio and you will not be able to find it in other stores - This is a very small worldwide limited edition of 50 serialized pieces.

Blade: 58HRC N690Co Testudo Stainless Steel
Country of production: Italy
Handles: Black satin anticorodal
Blade Lenght: 90mm.
Blade Thinckness: 4mm.
Total Lenght: 205mm.
Hole Diameter: 22mm
Weight: 152g.
Sheath: Kydex with Tek-Lok
Notes: Worldwide limited edition, only 50pcs each serialized

This knife is a Collini Cutlery exclusive edition, the one and only Karambit blade ever made by Extrema Ratio and you will not be able to find it in other stores - This is a very small worldwide limited edition of 50 serialized pieces.

Blade: 58HRC N690Co Testudo Stainless Steel
Country of production: Italy
Handles: Black satin anticorodal
Blade Lenght: 90mm.
Blade Thinckness: 4mm.
Total Lenght: 205mm.
Hole Diameter: 22mm
Weight: 152g.
Sheath: Kydex with Tek-Lok
Notes: Worldwide limited edition, only 50pcs each serialized

Destination: utility and emergency knife
Blade: stainless steel N690Co, hardened to 58 HRC
Handle: anodized aircraft aluminum anticorodal
Total Length: 260 mm.
Blade Length: 118 mm.
Blade Thickness: 4 mm.
Locking Type: liner lock
Clip: made of stainless steel, removable
Weight: 266 g.
Notes: led light - emergency blade (length 8 cm) - glass-breaking

Destination: Coltello multiuso di emergenza e sopravvivenza
Blades: Acciaio inox N690Co a 58 HRC
Handle: Alluminio aeronautico anodizzato anticorodal
Total Length: 260 mm.
Blade Length: 118 mm.
Blade Tickness: 4 mm.
Locking Type: liner lock
Clip: amovibile in acciaio
Weight: 330 g.
Notes: luce led - lama emergenza (lungh. 8 cm)  - sega per legno (lungh. 11,5 cm) con terminale a gancio affilato - frangivetro - punte cacciavite

Production type: Industrial
Country of Production: Italy
Blade: stainless steel N690Co
Blade finish: Burnishing 
Handle: Rough Anticorodal
Blade length: 115mm.
Blade thickness: 4mm.
Length closed: 158mm
Total length: 268mm.
Thickness when closed: 15mm.
Weight: 197g.
Closure: Liner Lock with Additional Safety.
Clip: Removable and multi-position, stainless steel
Sheath: Cordura and Kydex with magnetic blade retention
Packaging: Cardboard box with Extrema Ratio logos
Notes: supplied to the French G.I.G.N. (National Gendarmerie Intervention Group), which specializes in counter-terrorism and hostage-response operations

Ingredior: "io entro".
Lo specialista, la versione più spinta della serie MF, ha una punta studiata per ottenere la massima penetrazione mentre la doppia guardia aumenta la sicurezza nei colpi di punta.

Destinazione d'uso: Tattico

Tipo di produzione: Industriale
Produzione Lama: Italia
Lama: in acciaio inox N690Co
Trattamento Lama: Testudo
Manicatura: Anticorodal con frangivetro in acciaio inox
Lunghezza lama: 112mm.
Spessore lama: 4mm.
Lunghezza chiuso: 150mm.
Lunghezza totale: 265mm.
Spessore da chiuso: -
Bilanciatura: -
Peso: 200g.
Chiusura: Liner Lock con sicura addizionale
Clip: Acciaio inox
Fodero: Nylon Nero, compatibile MOLLE, con chiusura in Velcro
Confezione: Scatola di cartone con loghi Extrema Ratio
Note: