The electroplated diamond polishing pads offer the most aggressive removal rate you can imagine - they are much faster than an impregnated grinding disc because they have 100% diamond exposure. Diamond Electroplated Polishing Pads can be used wet or dry on a sander or grinder, and they operate well at any speed. The pads work on concrete, stone, tile, wood, swimming pool surfaces (the ONLY answer to quickly sanding PebbleTec), metals, even glass. Currently we offer 4" and 5" in diameters with 60 grit, 120 grit, 200 grit and 400 grit. Use regular dry or wet diamond polishing pads to finish polishing.