Alternatively the body of lead may be fixed to the shaft and {HEAD ~ the outer jacket} has {TAIL ~ a portion} of enlarged diameter through which the energy absorber passes 
has
Alternatively the body of lead may be fixed to the shaft and { HEAD ~ the outer jacket } has { TAIL ~ a portion } of enlarged diameter through which the energy absorber passes
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH