The cut is made so that the blades extend through {HEAD ~ the cutting cavity} or {TAIL ~ tunnel} thus cleaning itself 
The cut is made so that the blades extend through { HEAD ~ the cutting cavity } or { TAIL ~ tunnel } thus cleaning itself
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH