Versatile Application: From deburring to polishing, this tool is ideal for a wide range of materials including cast iron, stainless steel, and more. Premium Tungsten Steel: Crafted from high-quality tungsten steel, this blade offers exceptional hardness, wear resistance, and heat resistance, significantly boosting productivity. Enhanced Adaptability: Featuring blade teeth at the front end, it excels in intricate workpieces and complex working environments, ensuring versatility in various tasks. Extended Shank for Precision: The extended shank design enables deeper processing, making it perfect for tasks like complete pipe and impeller runner processing with precision. Multi-tool Compatibility: Designed for use with pneumatic or electric tools, this tool operates optimally at speeds between 5000-6000 rpm, making it a versatile addition to your toolkit. Item Type: Rotary File Shank Diameter: Approx.6mm / 0.24in Application: Suitable for deburring and polishing cast iron, cast steel, carbon steel, alloy steel, stainless steel and other materials. Note: 1. Mainly used on pneumatic or electric tools. 2. The speed is generally 5000‑6000rpm. 3. When using, the tool should be clamped tightly and uprightly, and the cutting method should be up‑cut milling to avoid reciprocating cutting. 4. To prevent chip splashing during work, please use protective glasses. Material: wolfram steel colour: silver Package Contents: 4 x Burr Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.