Description 90 Pieces Diamond Drill Bit Set Multi-Tool Accessory Kit for Dremel Grinding Drill Bit Set Dremel Tools Features: - 90 Pieces Diamond Burs: Excellent Diamond Burs Drill Bit Grinding Set Dremel Tools for Precision Work,cutting, engraving, carving, retouching and finishing;Diamond Drill Bits Grinding Set Drill Dremel Tools Works on glass, metal, stone, ceramic, wood and plastic.- Storage box: PC plastic storage box is sturdy, drop-proof and moisture-proof, easy to carry and hang;All the parts were in order and the set was complete, well organized to avoid dispersion and confusion.- Different Pointed Bit Accessories: 30 different styles of pointed router bits can achieve more carvings, ideal for all kinds of detail work.- Wide use: 3mm diameter shank, Dremel Tools diamond drill bit grinding kit compatible with most tools;Great for DIY projects, crafts and anytime you need to polish, grind, drill, cut, engrave and more.,Used with most tools including DREMEL, Craftsman, Chicago and others.,Capable of engraving on a wide range of materials including: wood, ABS, acrylic, PVC, plastic, etc.Suitable for detail work, such as building and sanding dollhouse furniture, model trains or model buildings.Note: 1. Water drilling only.These Dremel Tools diamond drill bits are very small diameter and delicate diamond drill bits.The diamond coating is very thin.He can't take any abuse.2. Start the hole at an angle.While holding the drill, carefully move it just enough to ream the sides of the hole.Let the tool do the work.Diamond Drill Bits Grinding Kit Drill Dremel Tools Specifications: Type: Diamond Drill Bits Grinding Drill Bit Kit Dremel Tools Quantity: 90 pcs Diamond Drill Bits Grinding Drill Bits Dremel Tools Diamond Drill Bits Grinding Drill Bits Dremel Tools Length: 45mm Package includes: 3 x boxDremel Tools Bit Grinding Drill Set (90pcs)