The locking mechanism may be responsive to movement of {HEAD ~ the actuator knob} to maintain the tool within {TAIL ~ the output shaft} when the actuator knob is in the lock position and permit removal of the tool when the actuator knob is in the unlock position 
The locking mechanism may be responsive to movement of { HEAD ~ the actuator knob } to maintain the tool within { TAIL ~ the output shaft } when the actuator knob is in the lock position and permit removal of the tool when the actuator knob is in the unlock position
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH