This 13-piece diamond polishing pad set includes 11 4-inch polishing pads (grit 50#, 100#, 150#, 200#, 300#, 400#, 800#, 1500#, 3000#, 6000#, 8000#), 1 rubber backing pad (5/8 - 11 thread), and 1 drill bit adapter. The set provides greater flexibility, durability, and absorbency, making it more effective in removing scratches and achieving a high-gloss finish. This diamond polishing kit is designed for both wet and dry polishing, the 50-150 grit polishing pads can be used wet or dry, while the 300-8000 grit polishing pads must be used with water to the best polishing results. Please follow the recommended rotation speed and use below 5000RPM to avoid potential damage to the . These /marble polishing pads are made of high-quality diamond powder and resin powder for strong durability. The backing pad is made of high-quality rubber, providing a semi-flexible support that can adapt to different shapes of surfaces, including corners, edges. Suitable for all solid materials such as , concrete, marble, quartz countertops, stone, tile and glass. Great for countertops, tabletops, splashbacks and other residential or commercial projects. For best results, use the polishing pad with water when wet polishing. Easy to install or remove the polishing pad. The brass shaft 5/8Inch-11 threaded backing pad allows you to connect to a variable speed polisher, grinder, household electric drill or other rotary tools. Never use with high-speed grinders. Please follow the recommended rotation speed and use below 5000RPM to avoid potential damage to the . Colour:As Shown Material:Metal Package Contents: 1set * marble polishing kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.