【More Choices, More Uses】A great carving bits set to meet your different needs. 20 Different shape engraving bit of the most commonly used types. To fit different woodworking situations, each Burr is shaped to fit different angles or situations, suitable for engraving, beveling, chamfering, grooving, reaming, hollow【High Compatibility】With 1/8 inch(3mm) shank, Length: 1.53inch(39mm). Make these HSS carbide rotary files can work with most rotary tools or die grinders (such as, for Dremel Wen, for Apollo). A valuable addition to any woodworker's rotary tool【High Quality】Made of high-speed steel (HSS) and coated with titanium for long life and exceptionally precise cuts, durable, good wear resistance, and heat resistance. Save your time and money【Widely Usage】A valuable supplement to woodworking rotating tools. Very suitable for detailed work, such as building and sanding dollhouse furniture, model trains, or miniature buildings and planes. Able to engrave on a wide range of materials including wood, ABS, acrylic, PVC, plastics, etc【What You Get】20 Different Shape Rotary Bit Burrs Set and comes with a mini clear storage case, and friendly customer service, If YOU have any problems, please feel free to contact our customer services team, solutions would be within 24hours