Features: and Achieve precise and efficient grinding, selected from diamond particles for durability and balance. This diamond burr tool offer a design suitable for carving and grinding various materials like glass, tile, marble, and jewelry. Perfect for DIY enthusiasts, designers, and hobbyists, this tool caters to a wide range of users. Easily polish the inner surfaces of Stone and flower pots with our diamond grinding wheel Experience smooth polishing and work efficiency with our diamond grinding tool, suitable for both electric grinders and hand drills. Adding water to polish is better The installation of hand electric drill requires hand electric drill connecting rod before it can be used. Specifications: Material:Diamond Dia:Approx.3cm or 40mm or 50mm Package Includes: 1x Polishing Tool note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.