- The material of the working cutting part and shank is stainless steel of increased strength. - Fine dispersion (53 - 63 microns). - Permissible rotation speed 300,000 rpm. - Type: Fine. - Color: Red. - ISO: 297. - Diameter: 013. - Working: 7.1. - Overall Length: 21.0. **For further product information, please contact Chat Support**