Description:

Specifications: Shank diameter: 3mm(1/8"), cutting edge diameter: 6mm. Fits most rotary die grinders. Long Working Life: Made of heat-treated tungsten carbide that hardness can be up to above HRA85, sharp and sturdy, long service life. Double Cut Design: The lines are crossed. Double groove rotary files are more suitable for the object density is relatively low, such as Wood, Plastic, Aluminum. Versatile Use: Widely used for metalwork, tool making, model engineering, wood carving, jewelry making,welding, chamfering, casting, deburring, grinding, sculpting. Tips: Requirement of the carbide burrs rotating speed is: 4000-50000 rpm. Always ensure your burrs shank is well inserted into your collet and clamped down tightly.