When released from between the body pins 30, 30 a, the anvil holder 40 permits removal and {HEAD ~ repositioning} of {TAIL ~ the retained anvil} 70 
of
When released from between the body pins 30 , 30 a , the anvil holder 40 permits removal and { HEAD ~ repositioning } of { TAIL ~ the retained anvil } 70
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH