{HEAD ~ The cutter blades} rotate in opposite directions from each other so that tip ends of the cutter blades move from front to rear at right and left outsides, respectively, of {TAIL ~ the mulching mower} 
{ HEAD ~ The cutter blades } rotate in opposite directions from each other so that tip ends of the cutter blades move from front to rear at right and left outsides , respectively , of { TAIL ~ the mulching mower }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD 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 OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL