You can oil the remaining surfaces, once both tapers are seated.
But in the mated tapers, I don't think that you'll see any rust, unless
you do something like wiping down the taper with acid or iodine just
prior to seating it. :-)

Iodine?!?

Wont that make it rust like the devil?

Gunner


Sure would. Iodine, he be closely related to chlorine - and you know what that
would do.

John Martin