... sharp 2. long life 3. fine gloss 4. cost save diamond polishing plate / disc for granite marble grinding & polishing on manual ... , #200, #400, #500, #800, # 1500, Buff (B/W)Rough polishing: Diamond metal bonded disc, very sharp to remove the material, high ... efficiency.Fine polishing: Diamond resin bonded disc, excellent gloss achieved and low cost.Polishing ...