The enclosure wall is formed by side wall portions ar {HEAD ~ right and left outsides} of {TAIL ~ the cutter housing} and front and rear enclosure wall portions hang down from the under surface 
The enclosure wall is formed by side wall portions ar { HEAD ~ right and left outsides } of { TAIL ~ the cutter housing } and front and rear enclosure wall portions hang down from the under surface
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD 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