... use Size: 3" - 10" Factory directed price Diamond tool - diamond concrete grinding head is made by Xiamen Verich, which the ... stone tool. The diamond tools we can supplied are included diamond blade, segment, polishing pad, grinding pad, grinding wheel, profiling wheel, drill bit, etc ... satisfy you to the best of our ability. Item No.:diamond grinding head Diameter:3", 4", 5".Grit: #50, #100, ...