Features: 1.Multi Purposes: Rotary burr set can be used for woodworking, engraving, carving, polishing, tool making, engineering, jewellery making, etc. 2.Carbide Material: Rotary burr file kit is made of carbide, high temperature resistance, high strength, durable and can be long time operated. 3.Dual Cut: The double cut will leave a smoother finish, high strength and ultra sharp cutting teeth, high efficiency, saving your working time. 4.Package Contents: The package includes 5pcs carbide rotary burrs with different sizes, can be used with handheld electric or pneumatic tool. 5.Applicable Models: Carbide rotary burr set is widely used, suitable for aviation, automobile, ship, boats and so on, helpful and practical. Specification: Item Type: Carbide Rotary Burr Set_x000D_ _x000D_ Material: Carbide_x000D_ Kit Includes: LX0616M06, LX0822M06, LX1025M06, LX1228M06, LX1428M06_x000D_ Size:_x000D_ LX0616M06 shank diameter is 6mm / 0.24in, cutter head diameter is 6mm / 0.24in, total length 65mm / 2.56in_x000D_ LX0822M06 shank diameter is 6mm / 0.24in, cutter head diameter is 8mm / 0.31in, total length 63mm / 2.48in_x000D_ LX1025M06 shank diameter is 6mm / 0.24in, cutter head diameter is 10mm / 0.39in, total length 68mm / 2.68in_x000D_ LX1228M06 shank diameter is 6mm / 0.24in, cutter head diameter is 12mm / 0.47in, total length 72mm / 2.83in_x000D_ LX1428M06 shank diameter is 6mm / 0.24in, cutter head diameter is 14mm / 0.55in, total length 72mm / 2.83in_x000D_ Applicable Models: Suitable for aviation, automobile, ship surface grinding, etc.