>  Then I dripped some Kroil onto
>it and tapped it with a hammer, tried again, and it quite literally turned
>right off as though it were already slightly loose (which is wasn't prior to
>applying the Kroil).

         Some say Kroil isn't that great-- some applaud it with vigor.  But
real life is varied to 'inth power.  In Ron's instance, maybe it loosened
the covalent bonds (or whatever) instantaneously because Kroil's properties
work better with *some* metals and various combinations thereof, plus the
combinations of various oxidations (rust) and the metals than
others.   This probably was an optimum situation for Kroil.  By serendipity
Ron chose the perfect product for the job.   By the same serendipity, HK
here might choose just the opposite.  I guess that's why Ron is in
business, and I just criticize from my computer.  : )

Happy Holidays  to one and all!

         HK

PS -- Didnt some of this sound suspiciously like Doktor T.P. Stephens?  : )