The inside surface of the replaceable cutter shell 49 mates with {HEAD ~ the surface} on {TAIL ~ the rolling cutter shell} 48 
on
The inside surface of the replaceable cutter shell 49 mates with { HEAD ~ the surface } on { TAIL ~ the rolling cutter shell } 48
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH