Separating Disc For Dental Cutting Disc Great for fast, clean cutting and finishing for porcelain and gold.For use on porcelain, enamel, gold, crown and bridge metals, as well as precious metals.Specification:D38mm*0.6mm(thickness)D38mm*1mmD38mm*2mmD38mm*2.5mmD38mm*3mmD22mm*0.2mmD25mm*0.2mm