- The material of the working cutting part and shank is stainless steel of increased strength. - Standard fineness (106 - 125 microns). - Permissible rotation speed 300,000 rpm. - Type: Standard. - Color: Blue. - ISO: 169. - Diameter: 011. - Working: 3.7. - Overall Length: 16.8. **For further product information, please contact Chat Support**