Features 1、These burrs are made of tungsten carbide steel for high hardness, high abrasion resistance and high heat resistance. 2、There are total 10 pieces double cut burrs in various shapes that you can use for many purposes. 3、3mm shank would fit many electric powered or pneumatic powered tools and machine tools. 4、They can be used for carving, shaping and for the removal of edges or corners, burrs and excess material. 5、Widely used in machinery, aviation, automobiles, ships, chemical industry, craft, carving, etc. Specification Features: These burrs are made of tungsten carbide steel for high hardness, high abrasion resistance and high heat resistance. There are total 10 pieces double cut burrs in various shapes that you can use for many purposes. 3mm shank would fit many electric powered or pneumatic powered tools and machine tools. They can be used for carving, shaping and for the removal of edges or corners, burrs and excess material. Widely used in machinery, aviation, automobiles, ships, chemical industry, craft, carving, etc. Specification: Material: Tungsten carbide steel Shank Diameter: 3mm / 0.12in Head Diameter: 4mm / 0.16in, 6mm / 0.24in (Optional) Type: Type A: Double cut cylinder shape Type C: Double cut cylinder ball head Type D: Double cut ball shape Type E: Double cut oval shape Type F: Double cut curved round head Type G: Double cut curved pointed head Type H: Double cut torch shape Type L: Double cut cone shape flat tip Type M: Double cut cone shape pointed head Type N: Double cut inverted cone shape Weight: 60g~74g / 2.1oz~2.6oz (approx.) Package list: 10 * Burrs Package List