Flat&Safety Glass Edge Grinding and Drilling Optical Lens Grinding,Crystal Grinding Tungsten Carbide,Cermet,cast alloy.Ferrite. Application:Flat&Safety Glass Edge Grinding and Drilling Optical Lens Grinding,Crystal Grinding Tungsten Carbide,Cermet,cast alloy,Ferrite,Quartz Grinding, Engine parts Honning.Feature/Benefit:Excellent Form-holding capability,High Abrasion&Heat Resistance,Excellent for ...