| Great for cutting gemstones, glass, porcelain, tile, carbide, rock, ceramic, aluminum and copper, great for crafts, hobbies, home repairs, jewelry, gem use, modeling, and more. The diamond grinding head set features a general purpose 3 mm (1/8 in.) shank grinding head that is compatible with most rotary tool or die grinders. The cutting wheels diameters are 20mm and 30mm, the impellers are 12mm and 15mm, the Mandrel Diameter is 3mm Color as shown Material: diamond Package Contents: 26 x diamond burr bits 4 x diamond cutting wheels 3 x metal Mandrel 10 x impellers Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item … | |