1)Resin 4'' floor grinding and polishing pad 2)Thickness:3mm 3)Grit 50,150,300,500,1000, ... 2000,3000 4)High diamond ratio 4" resin bond floor grinding and polishing pad JS-001----- We supply premium grade diamond pads only ... ,granite,terrazzo, etc.9, For only floor removal, renovation, grinding, polishing.9. Fit on hand grinders and floor grinder or polisher.Pictures: 4" floor polishing pad