This is not your ordinary fixed blade head. The back edge of the blades are sharepened to cut whether going in or out, with a bone crushing solid stainless steel v-notch tip and 4 point blade locking system making the Hades the best flying, best penetrating fixed blade on the market! Extremely Sharp High Strength Blades Aircraft Grade Aluminum Ferrule Corrosion Resistant, Rust-Proof tip Sharpened on Blade backside for maximum internal cut