... 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 ... dry, wet better3. Grit no. covers 50,150,300,500,1000,2000,30004. 3" or customized sizes5. The exclusive thickness ... on hand grinders and floor grinder or polisher.Pictures: 3" diamond polishing pad