a second portion configured to engage a side of {TAIL ~ a cutting tool} disposed within the output shaft of the reciprocating assembly, the second portion including {HEAD ~ a bore} receiving a lock spring therein configured for biasing the lock pin in the lock position; and 
a second portion configured to engage a side of { TAIL ~ a cutting tool } disposed within the output shaft of the reciprocating assembly , the second portion including { HEAD ~ a bore } receiving a lock spring therein configured for biasing the lock pin in the lock position ; and
OTH OTH OTH OTH 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 HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH