What Padruig above stated usually works well. If it is more rusted, PB Penetrating Catalyst spray is pretty amazing for rust removal.My buddies do not take very good care of their knives. If you have a knife with a small amount of rust and some very minor pitting on the grip, how do you remove that?
I have a few methods I use, but was wondering if anyone knew of anything easier than what I do
Edited to add that you can spray some on a paper towel and apply with a Q-tip to avoid getting it on any handle material.