High Quality Materials: Granite grinding wheel is made from imported diamond sand particles, large particles, large quantities, thick blade body, sharp wear resistance, dry grinding without burning tablets.the high concentration diamond ensuring its durableand long service life. Unique Design: Diamond abrasive cup wheel designed with 8pcs air holes and dome flange shapes, make it more superior chip removal and exhaust performance, not easy to heat, reduce the wear of the grinding disc, and make the grinding more stable. 8 Hole Dust Extraction: The pores of double row grinding wheel help maintain and cool the cutting pattern and reduce wear so as to produce a more consistent diamond scratch pattern. Provide the optimal & necessary combination of allowable airflowand debris removal. Wet/Dry Use: Marble cup grinding wheel with the 5mm height double row segments are perfect for both fast and smooth grinding. Can be used in wet or dry state, great to use in different situations.adding some water, you get better effects during grinding. Wide Application: Granite grinding wheel allows for providing for very fast cutting action on used for concrete, granite, stone, marble, tile, masonry, and some other construction material to smooth uneven surfaces and remove flashing.