"Extrema Ratio Sethlans" is a fixed blade work knife created to face a wide range of situations, suitable for survival, bushcraft, prepping, but also as a backup blade.

The Sethlans was designed in collaboration with Daniele Dal Canto, Master Advanced FISSS instructor (Italian Federation of Sports and Experimental Survival).

This Stone Washed version uses Böhler N690 heat treated steel at 58 HRC, chosen for the reliability it has demonstrated over the past 20 years due to its resistance to oxidation and wire life.

The knife comes with G10 grips that feature the ergonomic design characteristic of Extrema Ratio handles. They can be removed by freeing the skeletonized structure of the knife, allowing maximum lightness with minimum thickness. For lovers of extreme customization, the full-tang structure allows the handle to be covered with a paracord cord.

The sheath is composed of a part in very light and minimalist Kydex. It can be disassembled and can be adapted for both left and right handed users. The addition of an optional belt clip allows the knife to be positioned both vertically and horizontally and makes the sheath much more versatile than the textile version. It is equipped with a mini pouch with MOLLE system containing a bi-facial stone for sharpening and a Firesteel for lighting fires.

• Böhler N690 steel blade
• G10 handle
• Kydex carrying case

Brand: Extrema Ratio
Blade finish: Stone Washed
Blade type: Smooth drop point
Blade material: Böhler N690 steel
HRC: 58
Handle material: G10
Total length: 224mm
Blade length: 107mm
Blade thickness: Thinned from 6.3mm to 4mm to improve cutting capabilities
Weight 207g
Complete with Kydex sheath, sharpening stone and flintlock