A precision machining system for machining {HEAD ~ a workpiece} into {TAIL ~ a desired surface} with two tool driving units 
A precision machining system for machining { HEAD ~ a workpiece } into { TAIL ~ a desired surface } with two tool driving units
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH