A mandrel 76 disposed internally of the cam member 24 reciprocates into {HEAD ~ the tube} 20 to prevent {TAIL ~ the tube} from deforming during the cutting operation 
to prevent
A mandrel 76 disposed internally of the cam member 24 reciprocates into { HEAD ~ the tube } 20 to prevent { TAIL ~ the tube } from deforming during the cutting operation
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH