Hardened steel drills coated at the tips with diamond grits. for fast drilling of stones and ceramics. Run at speeds between 5,000 and 20,000rpm. Use water or light oil as lubricant.
Available individually in 6 sizes from 0.75mm to 2.5mm. Also sold in a money-saving set of all six.
| Abrasive | Diamond |
| Bur Material | Diamond |
| Country of Origin | United States of America |
| Operating Speed | 5,000-20,000rpm |
