{HEAD ~ The body} of lead may be fixed relative to {TAIL ~ the outer jacket} and the shaft has a portion of reduced diameter which moves through the lead 
fixed relative to
{ HEAD ~ The body } of lead may be fixed relative to { TAIL ~ the outer jacket } and the shaft has a portion of reduced diameter which moves through the lead
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH