wherein the neck portion is disposed between the first and second portions, the neck portion having a transverse width smaller than a transverse width of {HEAD ~ the second portion} to permit {TAIL ~ insertion} and removal of the tool 
wherein the neck portion is disposed between the first and second portions , the neck portion having a transverse width smaller than a transverse width of { HEAD ~ the second portion } to permit { TAIL ~ insertion } and removal of the tool
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 HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH