60 Grit 30 pieces diamond set grinding burrs drill bits set diamond bit with 1/8 inch , diamond-coated stone carving accessories bit universal fitment for tools in and shapes:You will receive 30pieces diamond bit tools, and designed in shapes, such as sphere, cone, cylinder, round head cylinder, , flat plat and more, different and ample will meet your different requirements, will increase your efficiency and save your time and labor.Good performance:Diamond set is featured with universal 3mm (1/8 inches) grinding drill bits, which compatible with most tools or die grinders, perfect for carving and cutting on many kinds of materials, suitable for and craft, a helper to polish, grind, drill, cut, and more.60 Grits:Diamond grinding tools have 10 different grinding bits for abrasive, engraving, cutting, polishing, carving and , with 60 grits, have rougher surface which are quicker than the larger grit burrs when sanding, polishing and engraving.Colour:SilverMaterial:Alloy sandSize:3 x 45 x 6mm Package Contents:30 x Diamond bitsOnly the above package content, other are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed is +/- 1-3cm.