Features 1、Cemented Carbide: This is a rotary file made of cemented carbide, which is sharp and strong. 2、Cutting Edge: The double slot of the rotary file has more cutting edges, which can remove material faster. 3、Chamfering Treatment: The shank end adopts a chamfered rotary file, which is easier to clamp and easy to use. 4、Different Shapes: The different shapes of the rotary file can meet your needs, easy to grasp, safe and reliable. 5、Application: Rotary files are used for metal processing, molds and mold making, sinking, surface cleaning and maintenance, suitable for opening holes or ports on black materials. Specification Item Type: Tungsten Carbide Rotary Point Material: Tungsten Steel Cogging: 20Pcs Metal Rod Diameter: Approx. 3mm / 0.1in Cutting Edge Diameter: Approx. 6mm / 0.2in(10Pcs), Approx. 3mm / 0.1in(10Pcs) Purpose: Belonging to Processing, Tool Manufacturing, Model Engineering, Wood Carving, Jewelry Making, Welding, Chamfering, Casting, Deburring, Grinding, Cylinder Head Port and Carving Package List 10 x 3mm Rotary File 10 x 6mm Rotary File