Rust on my rounds....

[ScrapMetal]

My favorite rust removal product is called Evapo-Rust. Non-toxic, water clean up and will not harm any finish (unless the finish uses oxides like gun bluing, etc.)

Can be found at some auto parts or home improvement stores. It's a bit on the expensive side but a gallon will go a long way as it is reusable.

Here's a link to their site: http://www.evaporust.com/

-Ron