1,Glass grinding head, 2,Diamond tools, 3,Diamond grinding head for polishing , 4,Cutting steel Y15pb 5,The CNC cell glass ... are also the agent of Sandvik. Specificationsby electroplated process,perfec diamond grits ,high effcience,attractive price and good quanlity . Shank ... with customer requirements.we use Cutting steel Y15pbfor material.Diamond grinding head for glass screen polishing