... head: For granite, marble,concrete polishing & grinding Dry and wet use Size: 3" - 10" Diamond tool - diamond floor grinding head is made ... you to the best of our ability. Item No.:diamond floor grinding head Diameter: Grit:#6, #16, #30, #50, #100, # ... for dry and wet.Processing Object:Granite, marble, concrete etc.Feature1. For granite, marble concrete polishing & grinding.2. Total Coverage about 40 ...