ITEM NAME:160 x 4mm Lapidary Bent Curved Diamond Needle Files Red Handle 10 Pcs D1E2 160 x 4mm Lapidary Bent Curved Diamond Needle Files Red Handle 10 Pcs D1E2 Product Name : Diamond Needle File;Color : Red, Siver Tone Material : Metal, Plastic;Shank Dia. : 4mm / 0.16" Total Length : 160mm / 6.3" Total Weight : 155g 10 Pcs Diamond Needle Files in Different Profiles: flat curved, round curved, Triangular curved, half round curved, square curved, etc. Safty and easy to use with the red plastic coated handle. For filing of curves and corners in hardened steel dies, glass, ceramic, rock, car