4" DAMO Wet Diamond Polishing Pads Set of 8 PCS with White Buff for Granite Polish/Concrete Polisher. 1 of each grit 50,100,200,400,800,1500,3000 and buff included. Choose buff color;. Most popular wet pads, widely used;. Utilizing our patent metal bond tech., the pads are super aggressive and last up to 2X vs. regular pads;. Wet applications only;. Maximum speed 4,000RPM.