90 Pcs Diamond Burr Bits Drill Set Rotary Multi Tool Accessories Kit Product Features: -90pcs Diamond Burrs: Excellent for fine detail work, cutting, engraving, carving, touch-up and finishing; Work on glass, metal , stone, ceramic, wood, plastic. -Storage Box: PC plastic box is sturdy, falling resistant and moistureproof, easy for carrying and hanging; All parts were in order and set was complete, well organized to prevent scattered and confused. -Different Sharp Bits Accessories: 30 Style different sharp router bit can reach More Carving, Great for all types of detail work. -Wide Usage: 1/8" diameter shanks, compatible with most rotary tools; Ideal for home improvement, craft and whenever you need to polish, grind, drill, cut, engrave, and more,used with most rotary tools including DREMEL, Craftsman, Chicago and more,Able to engrave on a wide range of materials including: wood, ABS, acrylic, PVC, plastics, etc. Well-suited for detailed work, such as building and sanding dollhouse furniture, model trains, or miniature buildings. Note: 1.Wet drilling only. These are delicate, very small diameter diamond drill bits. The diamond coating is very thin. Can not take any abuse. 2.Start the hole at an angle. While holding the drill in hand, carefully move the drill around just enough to ream out the sides of the hole. Let the tool do the work. Product Specification: Type:Diamond Grinding Burrs Quantity:30/60/90pcs Diamond Burrs Length:45MM Package Includes: 1/2/3 x Box Diamond Grinding Burrs(30/60/90Pcs)