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