30 Grit Diamond Polishing Pads designed to remove the scratches by 30/40# metal bond diamond grinding, or to open the top of a hard floor as the first step. Ashine 30 Grit Diamond Polishing Pads works consistent without glazing problems even on a super hard floor, and leaves finer scratches for following work. Mesh grit available: 30# resin pads; 50# resin pads; 100# resin pads; 200# resin pads; 400# resin pads; 800# resin pads; 1500# resin pads; 3000# resin pads; 5000# resin pads.