Extrema Ratio Herring Knife

Extrema Ratio Herring Fixed Blade Knife

Extrema Ratio wanted to pay homage to this knife keeping the original design using the most modern production techniques. The unique handmade finish of the handle imitates the ageing of the brass and it gives the knife a dated look, similar to the original one. The Extrema Ratio Herring was developed in collaboration with 185th RRAO and adopted as a ceremonial commemorative fixed blade knife for the 20 years since the regiment’s constitution and 75 years since the Herring mission. This Herring Knife by Extrema Ratio has a blade length of 167mm with Böhler N690 Steel and features a Brass handle. Extrema Ratio Herring is one of the most loved military knives by the fans. Its original name is Fairbairn-Sykes or Commando Knife and it was presented in the combat set of the British Commandos.