diamond polishing pad for grinding hard stones Application: granite, marble. Used on right angle grinder. diamond polishing pad for grinding hard stonesApplication: granite, marble. Used on right angle grinder.Grit: coarse for hard granite, medium for softer granite, fine for smooth finish.Segment shape: straight turbo, curved turbo, single row, double row.Connection: M14, M16, 5/8-11, 7/8"-5/8". ...