Electroplated diamond grinding disc 1.Diameter:100-350mm 2.Hole:22.23mm, 25.4mm, 70mm 3.Diamond grit:40#,60#, 80#,as request4.suitable for ... cutting and grinding various hard materials, such as ... glass, ceramic, concrete and brick.5.smooth cutting surface, fast grinding speed, high efficiency6.If you have special requirements, we also ...