- Datron wieland zenotec cad cam ivoclar dental milling bur 0.3mm with stop ring. - Materials: zirconia. - Cutting diameter: 0.3mm. - Shank diameter: 6. - Over-all length: 63. - Length of cut: 1mm. - End Type: ball. - Stop Material: none. - Coating: CVD real diamond. **For further product information, please contact Chat Support**