Extrema Ratio Satre FX N690 Stone Washed — Fixed Blade Knife
Extrema Ratio Satre FX N690 Stone Washed is a fixed blade knife with a skeletonized full-tang structure, Böhler N690 (58HRC) blade, Stone Washed finish, black Kydex sheath, and a 99 g weight
The Satre FX N690 Stone Washed is a fixed-blade knife designed for prolonged field use. Its skeletonized full-tang construction balances weight very well and gives direct cutting control. The Stone Washed version uses Böhler N690 (58HRC) steel, a choice that Extrema Ratio pairs with an excellent balance of edge retention and impact resistance, while keeping operational maintenance low. The blade has a stone washed finish and a flat grind, and the knife comes with a pre-shaped black Kydex sheath.
The setup is highly practical: 99 g weight, 190 mm overall length, 95 mm blade length, and 5 mm blade thickness. The handle is also made of Böhler N690 (58HRC), and the design allows the grip to be customized with Paracord wrap. The sheath has attachment eyelets for optional carry accessories such as belt clip, Ulticlip, Malice clip, paracord, and shoulder strap setups.
Technical features
- Model: Satre FX N690 Stone Washed.
- Type: fixed blade knife.
- Structure: skeletonized full-tang.
- Weight: 99 g.
- Overall length: 190 mm.
- Blade length: 95 mm.
- Blade thickness: 5 mm.
- Blade material: Böhler N690 (58HRC).
- Blade finish: Stone Washed.
- Blade grind: flat grind.
- Handle material: Böhler N690 (58HRC).
- Sheath: pre-shaped black Kydex sheath.
- Carry customization: eyelets for Belt clip, Ulticlip, Malice clip, Paracord, and shoulder strap.
- Warranty: lifetime.
Package contents
- 1 Extrema Ratio Satre FX N690 Stone Washed.
- 1 pre-shaped black Kydex sheath.
How to use
- Use the knife for outdoor tasks, light bushcraft, field work, and prolonged use.
- Always keep it in the sheath after use.
- Keep blade and sheath clean and dry to preserve function and finish.
Safety warnings
- Do not tamper with or modify the product.
- Use carefully, especially when the blade is exposed.
- Keep out of reach of children.
- Always store the knife in the sheath after use.
- Use only for its intended purpose.
- Sales restricted to users 18+.
The Satre FX N690 Stone Washed is very well positioned as a premium fixed blade for field use: compact, essential, well balanced, and built to work for real.