Features: Wear-resistant: the diamond hand polishing pad is made of high-strength diamond and high-elastic sponge, wear-resistant with high operating resistance, can be used repeatedly For coarse and fine materials: suitable for different materials from coarse to fine. The finer the sand, the better the grinding effect; the coarser the sand, the better the polishing effect Widely used in polishing: widely used in polishing stones, tile cutting, glass burrs, metal polishing and renovation, wood deburring, etc. 4 types of grit: 60 grit for general slate and floor tiles, 100 grit for normal tiles, 200 grit for glass, 400 grit for fine polishing Side groove easy to use: the.