Description:

Specifications: Shank diameter: 3mm(1/8"), cutting edge diameter: 6mm(1/4"). 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. Single Cut Design: Single groove rotary files are more suitable for the object density is relatively high, such as alloy steel, stainless steel, hardened steel. 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.