1.Low costs for fast cutting 2.Smooth Surface after finished 3. ... correctly use 4.Better after-sales service It is suitable for: aeronautical material, crystal, glass, quartz, gemstone, stones, tile, ... Advantages: Good sharpness, high precision, not restricted by the profile, cheaper unit price and recycled substrate to reduce cost. ... 135/175×19/2420×8×810Sample diamond round wheel for stone