- The material of the working cutting part and shank is stainless steel of increased strength. - Coarse dispersion (125 - 150 microns). - Permissible rotation speed 300,000 rpm. - Type: Coarse. - Color: Green. - ISO: 508. - Diameter: 019. - Working: 9.6. - Overall Length: 21.0. **For further product information, please contact Chat Support**