The Polishing Pad Series February 13, 2018 By diamondspeed Dry Pad Copper Polishing Pad Wet Pad The Polishing Pad Series The Polishing Pad is for polishing marble, granite, concrete, and other various materials. These come in 50, 100, 200, 400, 800,1500, 3000, and 8500 grit. Call Diamond Speed Products, Inc. at 866-406-3100