Professional Double-Edged Flat Chisel Engraving Knife - Model CPZ5 ? Premium Hard Alloy Blade – Made from high-quality hard alloy (hardness level 7), ensuring long-lasting sharpness and durability for precise engraving and carving. ? Double-Edged Flat Chisel Design – The 5mm wide blade is perfect for seal carving (??), woodworking, linocut, and detailed craftwork. ? Ergonomic Leather-Wrapped Handle – The 145mm shaft is wrapped with a soft leather strip for superior grip and comfort, reducing hand fatigue during extended use. ? Versatile Reliable – Ideal for artists, calligraphers, sculptors, and hobbyists working on stone, wood, jade, or other hard materials. Specifications: Model: CPZ5 Blade Type: Double-edged flat chisel Blade Width: 5mm Shaft Length: 145mm Material: Hard alloy (tungsten carbide) Hardness Level: 7 Handle: Leather-wrapped for anti-slip comfort Perfect for: Seal carving (??) Wood engraving Printmaking (linocut, block printing) Jewelry stone carving DIY crafts professional artwork Note: This high-quality engraving tool is designed for precision and durability.