... grinding head: For concrete polishing & grinding Dry and wet use Size: 3" - 10" Factory directed price Diamond tool - diamond concrete grinding head is ... to the best of our ability. Item No.:diamond grinding head Diameter:3", 4", 5".Grit: #50, #100, #200, #400, # ... Snail, Thread etc.Work condition:Both for dry and wet.Processing Object:concrete etc.Feature1. For concrete polishing & grinding.2. Total ...