{HEAD ~ The bottom edge} 152 is sharpened prior to installation of the knife in {TAIL ~ the cutter head} and is not thereafter sharpened by the sharpening mechanism 78 
{ HEAD ~ The bottom edge } 152 is sharpened prior to installation of the knife in { TAIL ~ the cutter head } and is not thereafter sharpened by the sharpening mechanism 78
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH