1. Material: high carbon steel body + stainless steel mandrel + brass nut 2. Usage: Used for clamping processed parts on lathe 3. Made of metal material, wear-resistant and rust-resistant, corrosion-resistant, with good mechanical properties and high strength 4. Delicate workmanship, durable, the surface is not easy to hurt hands 5. Humanized design, easy to use, taper shank / straight shank two styles, beautiful and practical 6. Weight: straight shank about 275g, taper shank about 288g
