Description:8pcs 100mm 4 Inch 50-3000 Grit Diamond Polishing DiscsSpecification: Size: 100 mm\/4" Grits: 50、 100、 200、 400、 800、 1500、 3000 Quantity: 8pcs       Features: --Sharp、 wear-resistant and high efficiency. Optimal RPM 2200、 Max RPM 12000. --Works good for Wet or Dry polishing of stones. --Perfect for Granite、 Concrete、 Marble、 Stone、 Tiles etc. --Pro Grade Wet\/Dry、 Diameter 4"、 Height 3 MM、 Velcro Backed Flexible. --Aggressive and durable made with quality diamond powder impregnated in Resin.   Package Included: 8 x Diamond Polishing Discs  More Details: