Rotary Files Size: Shank diameter: 3mm / 1/8" (0.12"), cutting diameter: 5mm / 1/5" (0.2"), cutting length: 35mm / 1-3/8" (1.38"). Fit most rotary tools with three jaw chuck for accurate centering.. Wide Applications: Widely used for metalwork, tool making, model engineering, wood carving, welding, chamfering, casting, deburring, grinding, sculpting. Can replace small grinding wheels.. Carbide Material: Tungsten carbide rotary files features wear resistance, good toughness, higher hardness but is more brittle. Carbide can run at higher speed than high-speed steel.. Double Cut Design: The groove lines are crossed. Double groove rotary files are more suitable for the object density is relatively low, such as wood, plastic, aluminum. With good milling and cutting performance, ensures high work efficiency.. Tips: Always ensure the shank is well inserted into your collet and clamped down tightly. Mainly used on pneumatic or electric tools, the requirement rotating speed is: 4000-50000rpm..
