Features:
1. CE certificated
2. 6 hole
3. Optic Fiber Inner Channel ;
4. 360 degrees of freedom rotary interface
5. Titanium Metal
6. Air pressure: 0.3 Mpa
7. Rotation speed: about 20000 rpm
8. Bur applicable: ?2.35-0.016 mm (ISO 1797-1)
9. Noise:
