Knife - Essential Tool for Camping, Outdoor Adventure and collection

The axe has spanned history as a symbol of power, versatility, and innovation. From work tool to fearsome combat weapon, its evolution has accompanied ancient and modern civilizations.

Today, Extrema Ratio pays tribute to this tradition with Estrema, a tactical axe developed for the G.O.I. (Naval Operational Incursors Group), which blends state-of-the-art materials and functional design to meet the most extreme challenges.

Intended Use: Heavy Utility
Production type: Industrial
Country of manufacture: Italy
Blade: full tang in N690Co 54HRC stainless steel
Surface treatment: Dark Stone
Handle: G-10
Blade length: 80mm.
Blade thickness: 6.3mm.
Total length: 374mm.
Balance: advanced
Weight: 777g.
Sheath: kydex, MOLLE compatible
Packaging: technical, airtight, polymer case
Notes: -

Millennial heritage, modern innovation.

From the earliest times, the axe has embodied a duality between work tool and combat tool, evolving over the years to become a symbol of power and versatility. Its use as a work tool dates back to 6,000 B.C., while the earliest documented war use is between 700 and 600 B.C. during Etruscan times, as certified by the Auvele Felùske stele at Vetulonia.

Throughout the world, from Europe to Ancient Egypt to the Far East, the battle axe has been distinguished by its immediate effectiveness in combat, requiring less complex training than other tools but providing decisive performance in close quarters situations. EXTREMA RATIO, an official supplier to the Comsubin, reinterprets this age-old tradition with ESTREMA, a tactical battle axe developed for the G.O.I. (Naval Operational Incursors Group).

With a state-of-the-art design, ESTREMA combines the strength and speed of the historic weapon with technological innovation, offering a versatile and reliable tool for the most demanding missions. Suitable as both a tactical combat tool and a breacher tool, ESTREMA is designed to meet any challenge. The name “ESTREMA” expresses the nature of this model: our most extreme product, the result of our boldest manufacturing experience.

ESTREMA is made of Böhler N690 steel with 54 HRC hardness and dark stone finish. The G10 material handle offers two modes of use: grasping the end section of the handle provides the traditional grip, while a narrower grip encourages close use. The tang, in its end section, can be used as a burglary tool and for cutting and opening metal sheets. In addition, the tapering allows the axe to be used as a lever or crowbar.

ESTREMA can be equipped with a hammer (hammering mass) made of hardened and tempered carbon steel, which engages and disengages from the axe's pike via a snap mechanism with a safety catch to prevent accidental disengagement. This solution, the first of its kind applied in this context, makes the axe even more versatile. The rear hammer is an optional accessory that can be purchased separately.

ESTREMA comes in an innovatively designed airtight technical case, inside of which is also a Kydex sheath and belt clip.

The Kydex sheath, which is ambidextrous, is designed to offer different carrying modes and provide numerous interface options with the operator's equipment. It can be clipped to the belt using the belt clip included in the case, or attached to any MOLLE-equipped platform using a paracord lanyard. Axe retention is ensured by the natural conformation and elasticity of Kydex, supported by a lanyard secured with snaps.

Blade: Carbon Steel
Handle: horn
Blade length: 225 mm.
Blade Thickness: 10 mm.
Overall length: 350 mm.
Weight: without covers g. 375 - g with sheath. 504
Sheath: leather and wood, handmade
Notes: every knife and 'entirely handmade in Nepal and also includes two small knives.

Blade: Carbon steel
Conformation: Flat blade
Kauri: Discovered
Aunlo-Bal: single black line engraved
Manicure: Black horn of polished and engraved buffalo
Finishes: Brass
Blade length: 260 mm.
Blade thickness: 9 mm.
Total length: 380 mm.
Karda: 120 mm.
Chakmak: 115 mm.
Weight: 490g.
Sheath: leather and wood
Notes: Original Nepalese knife made entirely by hand

Kukri - World War II Gurkha

Nepal's national weapon and its Gurkha warriors are distinguished by their sharp curved blade in the lathe and the weight shift towards the tip that allows very effective gaiters. The grip is straight, no guard. Characteristic is the ricotta (kauri) and the leather sheath covered with two small knives (karda and chakmak).

Blade: Carbon steel
Handling: Wood - ATTENTION, since it is a handicraft product, the color of the handle may vary from the photographed model
Blade length: 250 mm.
Blade thickness: 11 mm.
Total length: 405 mm.
Sheath: leather and wood, handmade
Notes: Every knife is handmade in Nepal and also includes two small knives.

Blade: Carbon steel
Conformation: Dui Chirra
Kauri: Discovered
Aunlo-Bal: single engraved, black line
Manicure: Black horned horn engraved and polished
Finishes: Brass
Blade length: 275 mm.
Blade thickness: 10 mm.
Total length: 400 mm.
Karda: 110 mm.
Chakmak: 105 mm.
Weight: 505g.
Sheath: leather and wood
Notes: Original Nepalese knife made entirely by hand