90 Pcs Diamond Burr Bits Drill Set Multi Tool Accessories Kit for Dremel Diamond Burr Drill Bits Grinding Set Drill Dremel Tools Features: - 90pcs Diamond Burrs: Diamond Burr Drill Bits Grinding Set Drill Dremel Tools for precision work, lathe cutting, engraving, sculpting, retouching and finishing; Diamond Burr Bits Grinding Kit Drill Dremel Tools Work on Glass, Metal, Stone, Ceramic, Wood, Plastic. - Storage box: PC plastic box, all parts are stored in order, well organized to avoid scattering and confusion. - Different Sharp Bit Attachments: 30 different style sharp router bits for detail work. - Wide use: 3mm diameter rods, diamond drill bit grinding set, Dremel tools compatible with most tools; for home improvement, crafts, and anytime you need to polish, grind, drill, cut, engrave, and more, used with most tools including DREMEL, Craftsman, Chicago and more, capable of engraving on a wide range of materials including: wood, ABS, acrylic, PVC, plastics, etc. Suitable for detail work, such as building and sanding dollhouse furniture, model trains or model buildings. 1. Wet drilling only. These Dremel Diamond Drill Grinding Tools are delicate diamond drill bits with a very small diameter. The diamond coating is very thin. Can't take any abuse. 2. Start the hole at an angle. While holding the drill in your hand, carefully move the drill just enough to ream the sides of the hole. Let the tool do the work.