High Speed 20mm/M16 Vertical Column Servo CNC Drilling Tapping Machine 1. Designed according to CNC machining center. 2. This machine adopts double servo motor feed, one used to spindle rotation, the other to spindle feed power, and the synchronization is strong. 3. Using the drilling and tapping combination drill, the thread through hole can be processed at one time. 4. Simple operation, repeatability up to 0.02mm.