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