"Joe Bobst" wrote in message
...
Are there reverse application tools?

I have a cam type internal whatchamacallit that works in either direction.
For
a one time project, though, you could use a couple of conduit nuts (the
jam nut
priciple) with appropriate wremches. HTH

yep - an electrical locknut & a galv coupling locked on makes a pretty good
close nipple installer when u don't want to bugger the threads