Also, {HEAD ~ the superfinishing wheel} superfinishes {TAIL ~ the object portions} which have been ground by means of the grinding wheel, while moving after the first wheel head toward the home position of the first wheel head 
superfinishes
Also , { HEAD ~ the superfinishing wheel } superfinishes { TAIL ~ the object portions } which have been ground by means of the grinding wheel , while moving after the first wheel head toward the home position of the first wheel head
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL 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