About this item 【Package Includes】The diamond polishing kit comes with 12 Pieces of 4-Inch Diamond Polishing Pads (Grit 50#, 100#, 150#, 300#, 500#, 800#, 1000#, 1500#, 2000#, 3000#, 5000#, 8000#), 2 pieces of 5/8''-11 thread hook and loop backer pad and 2 pieces of 8mm drill adapter to meet all your polishing job needs. 【Wet/Dry Polishing Kit】Our diamond polishing discs are designed for wet and dry polishing, 50-150 grit suit for wet or dry polish; 300-8000 grit must be used with water to ensure the best polishing results. 【High Quality】These polishing pads are made of diamond powder and resin powder, aggressive and durable. The hook and loop backing pad is made with premium-grade rubber and a semi-flexible backer. The flexible design can adjust to different shapes of surfaces like corners or edges or curved surfaces. 【Easy to Use】Hook and Loop design is very convenient for you to install or remove the polish pads. A brass arbor 5/8''-11 thread backing pad with an 8mm drill adapter will allow you to connect to a variable speed polisher, grinder, household power drill, or other rotary tools. NEVER use with a high-speed grinder. Please follow the recommended rpm, use below 5000RPM to avoid potential damage to the surface. 【Wide Applications】Great for all solid surface materials such as granite, concrete, marble, quartz, stone, tiles, glass, etc. Ideal for countertops, tabletops, splash-backs, and any other job for residential or commercial environments. For wet and dry polishing, for best results use polishing pads with water. › See more product details