1、Overall Dimensions: Single and double cut carbide burrs shank diameter 6mm, length 45mm; cutter head diameter 14mm, length 32mm. 2、Premium Material: Made of cemented carbide, it is 10 times more durable than HSS burrs and 200 times more durable than small grinding wheels. 3、Advantages: High hardness, strong wear resistance, no deformation even at extremely high temperatures, and can be used for a long time. 4、Acuminous Cutting Head: Double cuts leave a smoother finish, making it better for wood, plastic, aluminum and titanium alloys. 5、Multipurpose: Used for metalwork, model engineering, wood carving, jewellery making, welding, casting, deburring, grinding and sculpting. 6、Wide Application: Rotary file is widely used in machinery, aviation, automobile, ship metal processing and DIY engraving, etc.