- Diamond burs are essential in a dental office. - These burs are used in dentistry to grind/prepare elements and restorative material and to finish the restoration. - Diameter (⌀ 1/10mm): 20. - Cutting length (mm): 2. - Length (mm): 19. - Shaft Type: 314-FG Standard. - Shaft Diameter (mm): 1.6. - Cup shape: BR – Ball shaped. - Grain: 544-Super Coarse. - Color: Black. - ISO 001/021. - MAX. speed 450,000 rpm. **For further product information, please contact Chat Support**