Explore Professional Kitchen Knives and Chef's Knives

Katla, designed by Jesper Voxnaes, is a liner lock folding knife, which brings back the Tanto profile blade with a bevel that enhances the excellent cutting qualities.

The rotation mechanism is provided by thrust bearings, and it can be opened with either the double thumb stud or the very fast flipper.

The detail that characterizes the Katla is the 3D processing of the handle at both ends of the bolster, which reinterprets in a modern way, the inlays of the classic Viper models.

The flat edges and the titanium clip allow for comfortable and discreet carry.

Intended use: EDC / Sport

Type of production: Industrial
Country of production: Italy
Blade: Super Dense Twist stainless Damascus
Blade finish: Satin
Handle: Dark matter carbon fiber
Blade length: 82mm.
Blade thickness: 4mm.
Closed length: 116mm.
Total length: 198mm.
Weight: 122g.
Lock: Liner Lock
Clip: Titanium
Packaging: Deluxe cardboard box with Viper logos
Notes: Design by Jesper Voxnaes - opening with Carson Flipper system on ball bearing - Damascus SSCT spacer - limited edition of 100 pieces

TACTICAL KNIVES MEET THE KITCHEN!
Extrema Ratio is delighted to apply the strict military standards to a range of professional kitchen knives.

The steel blade is the proven BOHLER N690, a steel enriched with chrome, vanadium, molybdenum and cobalt, hardened to the hardness of 58HRC. The handle is made of Forprene, an elastomer that is in the "NATO standard" for resistance to extreme conditions, and is completely removable from the blade; this makes possible a thorough cleaning and maintenance of the knife.

Each knife comes with its own sheath, also of military origin, which does not take into account the rules of hygiene but ensures safe transport dell'affilatissima blade and protection from shocks that could reduce efficiency. We recommend to use it only for the transport and in the event of long periods of inactivity.

Use: meat / vegetables

Type of production: Industrial
Production Lama: Italy
Blade: stainless steel hardened 58HRC N690Co
Treatment Lama: -
Handle: Forprene
Blade length: 199mm.
Blade thickness: 4mm.
Overall length: 331mm.
Weight: 280g.
Sheath: black leather
Packaging: Cardboard box with logos Extrema Ratio
Note: Can also be used as a knife or sports collectibles

TACTICAL KNIVES MEET THE KITCHEN!

Extrema Ratio is delighted to apply the strict military standards to a range of professional kitchen knives.

The steel blade is the proven BOHLER N690, a steel enriched with chrome, vanadium, molybdenum and cobalt, hardened to the hardness of 58HRC. The handle is made of Forprene, an elastomer that is in the "NATO standard" for resistance to extreme conditions, and is completely removable from the blade; this makes possible a thorough cleaning and maintenance of the knife.

Each knife comes with its own sheath, also of military origin, which does not take into account the rules of hygiene but ensures safe transport dell'affilatissima blade and protection from shocks that could reduce efficiency. We recommend to use it only for the transport and in the event of long periods of inactivity.

Use: meat / vegetables

Type of production: Industrial
Production Lama: Italy
Blade: stainless steel hardened 58HRC N690Co
Treatment Lama: Laser Desert Camo
Handle: Forprene
Blade length: 153mm.
Blade thickness: 4mm.
Overall length: 287mm.
Weight: 259g.
Sheath: Cordura, compatible M.O.L.L.E.
Packaging: Cardboard box with logos Extrema Ratio
Note: Can also be used as a knife or sports collectibles

TACTICAL KNIVES MEET THE KITCHEN!

Extrema Ratio is delighted to apply the strict military standards to a range of professional kitchen knives.

The steel blade is the proven BOHLER N690, a steel enriched with chrome, vanadium, molybdenum and cobalt, hardened to the hardness of 58HRC. The handle is made of Forprene, an elastomer that is in the "NATO standard" for resistance to extreme conditions, and is completely removable from the blade; this makes possible a thorough cleaning and maintenance of the knife.

Each knife comes with its own sheath, also of military origin, which does not take into account the rules of hygiene but ensures safe transport dell'affilatissima blade and protection from shocks that could reduce efficiency. We recommend to use it only for the transport and in the event of long periods of inactivity.

Use: meat / vegetables

Type of production: Industrial
Production Lama: Italy
Blade: stainless steel hardened 58HRC N690Co
Treatment Lama: Laser Desert Camo
Handle: Forprene
Blade length: 199mm.
Blade thickness: 4mm.
Overall length: 331mm.
Weight: 280g.
Sheath: Cordura, compatible M.O.L.L.E.
Packaging: Cardboard box with logos Extrema Ratio
Note: Can also be used as a knife or sports collectibles

TACTICAL KNIVES MEET THE KITCHEN!

Extrema Ratio is delighted to apply the strict military standards to a range of professional kitchen knives.

The steel blade is the proven BOHLER N690, a steel enriched with chrome, vanadium, molybdenum and cobalt, hardened to the hardness of 58HRC. The handle is made of Forprene, an elastomer that is in the "NATO standard" for resistance to extreme conditions, and is completely removable from the blade; this makes possible a thorough cleaning and maintenance of the knife.

Each knife comes with its own sheath, also of military origin, which does not take into account the rules of hygiene but ensures safe transport dell'affilatissima blade and protection from shocks that could reduce efficiency. We recommend to use it only for the transport and in the event of long periods of inactivity.

Use: meat / vegetables

Type of production: Industrial
Production Lama: Italy
Blade: stainless steel hardened 58HRC N690Co
Treatment Lama: Glazing
Handle: Forprene
Blade length: 153mm.
Blade thickness: 4mm.
Overall length: 287mm.
Weight: 259g.
Sheath: black leather
Packaging: Cardboard box with logos Extrema Ratio
Note: Can also be used as a knife or sports collectibles

Intended use: Collection / Steak / Sports

Production Type: Handmade
Production Blade: Italy
Blade: Stainless steel RWL34 to 60HRC
Treatment Blade: Mirror Polishing
Handle material: Loveless Canvas Micarta with 416 stainless steel guard and passing
Blade length: 98mm.
Blade thickness: 4mm.
Total length: 212mm.
Weight: 62g.
Sheath: handmade and hand-sewn, leather with ostrich inserts
Notes: Handmaded by Cesare Tonelli, Maestro Coltellinanio CIC (Italian Knives Corporation)

Intended use: Collection / Steak / Sports

Production Type: Handmade
Production Blade: Italy
Blade: Stainless steel RWL34 to 60HRC
Treatment Blade: Mirror Polishing
Handle material: Black Canvas Micarta with 416 stainless steel guard and passing
Blade length: 98mm.
Blade thickness: 4mm.
Total length: 212mm.
Weight: 62g.
Sheath: handmade and hand-sewn, leather with python inserts
Notes: Handmaded by Cesare Tonelli, Maestro Coltellinanio CIC (Italian Knives Corporation)