1) 3'' Resin diamond polishing pad and grinding pad 2)Thickness:12mm 3)Grit 50,150,300,500,1000, ... and polishing pad JS-003----- We supply premium grade diamond pads only We JS manufacture medium-to-high grade floor grinding diamond tools ... , For floor removal, renovation, grinding, polishing.9. Fit on hand grinders and floor grinder or polisher. Pictures: 3" resin bond diamond polishing pad