Top-class Material: Made of high quality tungsten steel. Suitable for processing wood, steel, iron, stainless steel, alloy steel, carbon steel, copper, aluminum & other metals and jade, marble, bone, etc. Wide Application: All burrs with 1/8 (3 mm) shank, suitable for most rotary tools and grinders. For example: suitable for Dremel tool, suitable for Proxxon Tool, suitable for Mister Tool and many more. Ideal for DIY, crafts, hobbies, home repair, jewelry, lapidary use, modeling and much more. 10pcs Rotary Burr Set includes: Ball, Nose, Cone, Cylinder, Needle Point, Pointed Shaft, Oval and Tapered, etc. Meet most of your drilling needs, suitable for woodworking, carving, engraving and polishing, chamfering, grooving, reaming, hollowing, beveling. < /p> Long Service Life: Our double-cut carbide cutting bits are easy to use, safe and reliable. The durability is 10 times that of high-speed steel tools and more than 200 times that of small grinding wheels. Portable Package: 10 pieces metal rotary burrs are packed in a plastic box with a separate slot, easy to use and store, no need to organize always keep clean.