A tool holder 16 for holding the insert, has walls forming, in cross section, a pair of straight holder positioning surfaces 80, 82 that abut {HEAD ~ a pair} of {TAIL ~ insert locating sides}, while avoiding contact with the arms 60, 62 
A tool holder 16 for holding the insert , has walls forming , in cross section , a pair of straight holder positioning surfaces 80 , 82 that abut { HEAD ~ a pair } of { TAIL ~ insert locating sides } , while avoiding contact with the arms 60 , 62
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 OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH