The toothed working layer can provide space for the drainage of chips during the operation and reduce the temperature of the working surface,so that the glass will not produce the phenomenon of burning glass due to excessive temperature.Diamond wheel has good sharpness,high grinding effciency,no breakage, high wear resistance of the grinding wheel,low wear of abrasive particles,long-term sharpness,which guarantees the machine to run fast;it has stronger stability,and the finished glass is perfect.