ESTREMA AXE

ABOUT THE ESTREMA AXE: The axe is one of humanity’s oldest and most iconic tools—used since 6000 BC for work, and later in warfare across ancient civilizations. From Etruscan warriors to Far Eastern fighters, the axe became known for its decisive power, simplicity, and reliability. Drawing from this legacy, Extrema Ratio  developed the ESTREMA: a next-generation tactical axe created for the GOI (Gruppo Operativo Incursori della Marina)*. The  ESTREMA is designed to perform in the harshest, most demanding environments. Whether you're in the field, at a remote camp, or on a mission, the ESTREMA is your go-to tool.

BLADE: The ESTREMA offers a durable, edge-holding blade with excellent corrosion resistance thanks to its dark stone finish. The tang tapers to a robust point, allowing it to double as a pry bar, metal cutter, or lever—making it highly functional for rescue work, emergency access, and heavy-duty utility tasks.

HANDLE: The handle features durable G10 grips, offering secure handling in all conditions including gloved or wet hands. Two grip zones allow for versatility—hold the end for maximum striking force or grip closer to the head for controlled use in tight quarters. The ergonomic shape ensures a good grip and stability.

SHEATH: ESTREMA comes with a custom-designed ambidextrous Kydex sheath, engineered for secure retention and versatile carry options. The sheath utilizes the molded shape and inherent rigidity of Kydex to hold the axe firmly in place. It includes a belt clip for standard belt attachment, allowing for quick and accessible carry. The sheath also features MOLLE compatibility, enabling it to be lashed to vests, packs, or gear using a paracord lanyard.

Everything is packaged in a hermetic technical case , providing secure, weather-resistant storage and transport.

Total Length of Axe: mm 374 (14.71 inches)

Blade Length: mm 80 (3.15 inches)

Weight of Axe: g 777 (27.40 ounces)

Blade Thickness: mm 6.3 (0.25 inches)

Blade Steel: Bohler N690 cobalt stainless steel

Blade Hardness: Rockwell 54 HRC

Blade Finishing: Dark Stone

Main Grind: Flat grind

Handle Material: G10

• The Gruppo Operativo Incursori (GOI) is the Italian Navy’s elite special forces unit, specializing in maritime counter-terrorism, reconnaissance, and high-risk operations.

ADDITIONAL INFORMATON

NOTE: Most Extrema Ratio knives are designed for many purposes except for use with food. While they are known for their versatility, durability and strength, they are not ideal for using with food. For food purposes, it's recommended to use knives specially designed for the task.