We offer a wide selection of electroplated, bonded and sintered burrs with a variety of shank sizes:,, 3mm and 6mm and ranging in diameter sizes from 50mm. Suitable for use on glass, stone, ceramic, porcelain, shell, bone, gemstones, fossil and hard woods. Excellent for engraving, carving, shaping, grinding and deburring. All of our diamond burrs are of premium quality so ...