1.High precision: spindle tolerance <0.01mm
2. Carbon-fiber head body: wear-resistance and rigidity make quill life over 10 years.
3. Variable spindle speed: automatically change speed
4. Energy-save: no idle running on energy-saving switch
5. Drilling / tapping switch: 100,000 times life
6. Laser light re-position, visible and precise
7. Intelligence digital readout depth with mm/min
8. Intelligence shift between drilling/tapping: spindle brake 0.2 sec, can provide protection to screw tap for suddenly reverse turning.