1. All black utility blades, blocking the contact of oxygen and steel 2. SK5 high carbon steel blade, good corrosion resistance, and anti-rust 3. Sharp cutting, no burrs, wider cutting 4. Three-layer cutting edge, special heat treatment process 5. Suitable for: cutting of corrugated paper, PVC, thick felt, soft metal, carpet, wallpaper, leather 6. Material: SK5 7. Blade angle: about 60 degrees 8. Blade thickness: about 0.6mm 9. Blade width: about 18mm
