Feature: 1. 100% brand new and high quality. 2. Made of diamond powder has the advantages of sharp grinding, fast glazing and high luminosity. 3. The pad holder are with water feed hole, can be used for wet polishing. 4. Fast polishing speed, high finish. 5. High wear-resisting degree, long service life. 6. There is no scratch or color on the stone after polishing. 7. Perfect for Granite, Concrete, Marble, Stone, Tiles etc. Specification: Features: 100% brand new and high quality. Made of diamond powder has the advantages of sharp grinding, fast glazing and high luminosity. The pad holder are with water feed hole, can be used for wet polishing. Fast polishing speed, high finish. High wear-resisting degree, long service life. There is no scratch or color on the stone after polishing. Perfect for Granite, Concrete, Marble, Stone, Tiles etc. Specifications: Material: diamond and resin powder Diameter: 4'' (100mm) Thickness: 3mm Backer Diameter : 4''(100mm) Pad Thread: M14 Female Thread Pad grit: 50,100,200,400,800,1500,3000,6000 Recommended RPM use is 5000 RPM or less Packing weight: 350g/ 12.34oz Package size: 100*100*80mm/3.94*3.94*3.15 in Package List: 2 * 50# 1 * 100# 1 * 200# 1 * 400# 1 * 800# 1 * 1500# 1 * 3000# 1 * 6000# 1 *Self-adhesive disc Package List: 2 * 50# 1 * 100# 1 * 200# 1 * 400# 1 * 800# 1 * 1500# 1 * 3000# 1 * 6000# 1 *Self-adhesive disc