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