General description Diamond Polishing Pad set includes 15 pieces of 4-inch (100mm) polishing pads designed for effective polishing of concrete, granite, marble, stone, and tile surfaces. The set features a variety of grits ranging from 50 to 6000, allowing for versatile applications and achieving a high-quality finish. Technical specifications Package includes: 14 mixed grit wet polishing pads (50#, 100#, 200#, 400#, 800#, 1500#, 3000#, 6000#) and 1 velcro backing pad (5/8" hole x 11 thread) Material: diamond powder and resin powder Diameter: 4" (100mm) Height: 3mm Optimum RPM: 2200 Maximum RPM: 12000 Usage Ideal for polishing solid surfaces such as granite, concrete, marble, stone, and tile Can be used dry, but best results are achieved with water Other information Features: Sharp, wear-resistant, and highly efficient