- The material of the working cutting part and shank is stainless steel of increased strength. - Very coarse fineness (180 - 212 microns). - Permissible rotation speed 300,000 rpm. - Type: Extra-Fine. - Color: Yellow. - ISO: 198. - Diameter: 015. - Working: 8.9. - Overall Length: 21.6. **For further product information, please contact Chat Support**