60 Grit 30 pieces diamond burr set rotary grinding burrs drill bits set diamond burr bit with 1/8 inch shank, diamond-coated stone carving accessories bit universal fitment for rotary toolsRich in quantity and various shapes:You will receive 30pieces diamond rotary bit tools, and designed in various shapes, such as sphere, cone, cylinder, round head cylinder, bullet, flat plat and more, different designs and ample quantity will meet your different requirements, will increase your efficiency and save your time and labor.Good performance:Diamond burr set is featured with universal 3mm (1/8 inches) shank grinding drill bits, which compatible with most rotary tools or die grinders, perfect for carving and cutting on many kinds of materials, suitable for home improvement and craft, a nice helper for you to polish, grind, drill, cut, engrave and more.60 Grits:Diamond rotary grinding tools have 10 different grinding bits for abrasive, engraving, cutting, polishing, carving and etching, 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 burr bitsOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.