Heretofore, the prior art failed to provide a simple push type expanding fixture to retain {HEAD ~ a hollow work piece} onto {TAIL ~ a rotatable tool} for performing a roll forming process 
onto
Heretofore , the prior art failed to provide a simple push type expanding fixture to retain { HEAD ~ a hollow work piece } onto { TAIL ~ a rotatable tool } for performing a roll forming process
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH