In operation, a user moves {TAIL ~ the belt sander} along the guide rails while the abrasive surface contacts the exterior surface of {HEAD ~ the work piece} to smooth the exterior surface of the work piece 
In operation , a user moves { TAIL ~ the belt sander } along the guide rails while the abrasive surface contacts the exterior surface of { HEAD ~ the work piece } to smooth the exterior surface of the work piece
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH