Extrema Ratio

A truly versatile "back up" with striking qualities. The leaf blade is characterised by a wide flat grinding, with a narrow whetting angle that makes it particularly sharp.

The automatic hard sheath has a tek-lok which means it can be positi...

A truly versatile "back up" with striking qualities. The leaf blade is characterised by a wide flat grinding, with a narrow whetting angle that makes it particularly sharp.

The automatic hard sheath has a tek-lok which means it can be p...

This series reinstates the tradition of the T2000 which has been out of production since 2003. The characteristics peculiar to these tactical tanto knives is the absence of hilts and a tanto profile that can be sharpened on the dorsal blade. The s...

This series reinstates the tradition of the T2000 which has been out of production since 2003. The characteristics peculiar to these tactical tanto knives is the absence of hilts and a tanto profile that can be sharpened on the dorsal blade. The s...

The ULTRAMARINE is the result of four years of research and development, conducted by Extrema Ratio in collaboration with Military Dive Teams of the Italian Special Forces, Law Enforcement Dive Teams and Civilian Underwater Operation Experts. Unit...