The product has strong grinding force, fast polishing speed, high finish and long service life. After using the product to grind or polish, there will be no traces and colors remain to the material. The smaller the grit size of the disc, the coarser the abrasive particles. Grinding disc with 50-150 grit is suitable for coarse grinding, grinding disc with 300-500 grit is suitable for fine grinding, grinding disc with 1000-2000 grit is suitable ultra-fine grinding, grinding disc with 2000-3000 grit is suitable for polishing. Item Name: Grinding Disc Material: Diamond Features: Durable, Wear-resistant, Polisher Accessories Diameter: 3" (Approx.) Thickness: 4mm/0.16" (Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Grinding Disc