{HEAD ~ A shoulder} 53 of {TAIL ~ the replaceable cutter} opposes the shoulder 52 on rolling cutter shell 48 
{ HEAD ~ A shoulder } 53 of { TAIL ~ the replaceable cutter } opposes the shoulder 52 on rolling cutter shell 48
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH