In {TAIL ~ the second position}, {HEAD ~ the abrasive surface} is in contact with the exterior surface of the elongated work piece 
In { TAIL ~ the second position } , { HEAD ~ the abrasive surface } is in contact with the exterior surface of the elongated work piece
REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH