These carbide rotary burr set, with 1/8inch is made from Tungsten Carbide. Total Length:45-50mm, Cutting Diameter 1/4inch, Length 35mm, Diameter 1/8inch.The groove lines of these carbide rotary burr's head makes it more suitable for materials with relatively low density, such as wooden, plastic and aluminum.1/8inch fits and most small rotary tools with three jaw chuck for accurate centering. An perfect choice for your DIY woodworking, carving, engraving, and polishing.Packed with plastic storage case for safety storage and protection. The working life of these solid rotary burr is 10 times longer than high-speed steel and 200 times longer than grinding wheel.Mechanical parts chamfering, rounding and groove processing.Color: SilverMaterial: steelSpecification: SinglePackage Contents:10 x Double Cut BurrOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.