Item Type: Rotary File _x000D_ Material: Tungsten Steel_x000D_ Shank Diameter: Approx.6mm / 0.24in_x000D_ Application: Suitable for deburring and polishing cast iron, cast steel, carbon steel, alloy steel, stainless steel and other materials. 1Wide Application: Suitable for deburring and polishing cast iron, cast steel, carbon steel, alloy steel, stainless steel and other materials. 2High Quality Material: Tungsten steel blade, high hardness, wear resistant and heat resistant, greatly improving work efficiency. 3Strong Applicability: With blade teeth at the front end, go deep into complex workpieces and apply to more complex working environments. 4Extended Shank Design: Deeper processing range, suitable for complete processing of pipes and impeller runners. 5Versatile: It is mainly used on pneumatic or electric tools, and the working speed is generally 5000-6000 rpm.1. Mainly used on pneumatic or electric tools._x000D_ 2. The speed is generally 5000?6000rpm._x000D_ 3. When using, the tool should be clamped tightly and uprightly, and the cutting method should be up?cut milling to avoid reciprocating cutting._x000D_ 4. To prevent chip splashing during work, please use protective glasses.4 x Rotary File