Help for Rust on tools

[terracore]

As far getting the thing unrusted, I know that mechanics use striking and/or heat to free rusted components, however in your application it sounds like it would damage the dremel. My dad used to spray stuff with wd-40 and let it sit (at least overnight) until the rust had softened. I tested that technique on ancient coins. It worked, but it also destroyed the patina.

Your tools sound expensive. Worst case scenerio is you have to consider modifying the environment with an a/c or dehumidifier.