{HEAD ~ The fastener} of {TAIL ~ the present invention} is rotatable by a drive gear for engagement with a workpiece in a preselected forward direction 
of
{ HEAD ~ The fastener } of { TAIL ~ the present invention } is rotatable by a drive gear for engagement with a workpiece in a preselected forward direction
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH