1) 3'' Resin diamond grinding and polishing pad 2)Thickness:12mm 3)Grit 50,150,300,500,1000,2000 ... ,3000 4)Good for stone,marble 3" resin bond floor grinding and polishing pad JS ... 003----- We supply premium grade diamond pads only Features:1. JS designed2. Use both wet and dry, wet ... . covers 50,150,300,500,1000,2000,30004. 3" or customized sizes5. The exclusive thickness 12mm represents ...