Vitrified bond Diamond Centerless Grinding Wheel for Precision Grinding the Cylinder of Polycrystalline Diamond Compacts ( PDC cutter) , Compared with resin diamond grinding wheel, our vitrified bond wheels lead to 35% grinding cost reduced, 40% grinding time of each PDC saved, and the size precision of PDC improved ( from ± 0.03mm to ± 0.01mm) .