On 2017-10-04, Michael wrote:

You may or may not be right. All I know is that my drill press had
rust on it and it looks like new (and is staying that way) after I
sprayed it with WD40 and scrubbed with some steel wool.

I'm so very happy for you (though, I suspect "scrubbed" is the
operative word, here).

Did you try Simple Green and steel wool? I know, by experience, it
will remove melted rubber (and most anything else!) from motorcycle
exhaust pipes. Jes warm the pipes enough to touch w/o being burned
and apply SG, then rub w/ 00000 steel wool. I think it even removes
the "bluing" (common to older single-tube exhausts) near the head.

Wranglerstar, a YouTube regular, has tried several rust removing
tricks. He actually recommends a regular "rust remover" (not Naval
Jelly), which he compared along side white vinegar. The "remover"
worked better, but I forget its name.

nb