Auniwaig Diamond Polishing Sanding Grinding Pads Discs Description: 1. Made with quality diamond powder impregnated in resin. backed for strong bond and quick change of polishing pads 2. Polishing Pads is perfect to polish concrete countertop surface and counter edge polishing and concrete floor surface wet polishing for high gloss finish 3. Flexible pads designed for perfect polish on a flat surface (Countertop Surface, Floor Surface). It works very well on all kind of profiles 4. Self-adhesive Backed pads provide easy connect and removal, and are color coded to easily identify grit of polishing pads 5.Pads are Color Coded per Grit, being easy to identify and avoiding any confusion during the process 6. Pads provide great results with dry use, but wet use is encouraged. Specification: Product Name: Diamond Polishing Pad Material: Diamond Powder, Resin Diameter: 75mm /3 inch Grit: 500 Thickness: 5mm / 0.2 inch Hole Size: 15mm / 0.59inch Max RPM: 12000 Package Content: 10 x Diamond Polishing Pads Note: The lower grit pads 50, 100, 150 works very well for dry usage. Lower grit dry grinding makes saw marks removal on the stone surface easy. The higher grits must be used with water for the best results. HOW TO INSTALL: Step 1 Connecting the 15mm Shank. Step 2 Attach the polishing pad hook and loop side to the backer hook and loop side. Step 3 Installed on the grinder or polisher.