10pcs Wet Dry Diamond Polishing Pads 4 Inch Set Kit for Marble Concrete Granite Features: Included: 9 pieces of diamond pads: 50, 100, 200, 400, 800, 1000, 1500, 3000, 6000 grit 1 backer pad with M10 thread Total: 10 pieces Durable Polishing Pad: Strong grinding force and smooth finish. High wear resistance with effective polishing performance Polishing Kit: Suitable for both wet and dry polishing. Recommended for use with water to achieve optimal results Application: Ideal for granite, engineered stone, concrete, marble, limestone, travertine, and slate polishing Note: Do not operate diamond polishing pads above 5000 RPM for best performance Specifications: Type: Polishing Pad Material: Diamond powder and resin Size: 100mm / 4 inch Inner Diameter: 16mm / 0.63 inch Backer Pad Thread: M10 (10mm / 0.4 inch) Thickness: 3mm / 0.12 inch Grits: 50, 100, 200, 400, 800, 1000, 1500, 3000, 6000 Package Included: 1 x 50 Grit Polishing Pad 1 x 100 Grit Polishing Pad 1 x 200 Grit Polishing Pad 1 x 400 Grit Polishing Pad 1 x 800 Grit Polishing Pad 1 x 1000 Grit Polishing Pad 1 x 1500 Grit Polishing Pad 1 x 3000 Grit Polishing Pad 1 x 6000 Grit Polishing Pad 1 x Backer Pad with M10 Thread