Extrema Ratio Satre S600 Black
The Extrema Ratio Satre S600 Black is a skeletonised neck knife in Böhler S600 steel, hardened and cryogenically treated to reach an exceptional hardness of 64 HRC: high wear resistance and a long-lasting edge. With 4.5% chromium, this steel is not stainless, hence the EXP DARK coating chosen by Extrema Ratio. Its high hardness makes it difficult to sharpen.
Specifications
- Blade length: 6.8 cm
- Overall length: 16.2 cm
- Steel: Böhler S600, cryogenic treatment, EXP DARK coating
- Hardness: 64 HRC
- Sheath: Kydex with paracord for neck carry





