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