 a tool mounted in said tool holder and having {HEAD ~ an axis} parallel to {TAIL ~ said longitudinal axis} 
a tool mounted in said tool holder and having { HEAD ~ an axis } parallel to { TAIL ~ said longitudinal axis }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL