I've used Evapo-rust from HF on hundreds of tools, that stuff works good. I put them in a plastic container, and let them sit for anywhere from one day all the way up to a week some times. Depending on how much rust is on there. Then get them out get anything that mite still be on them off with a wire brush, you don't have to work to hard on it, it just comes off thanks to the Evapo-rust. Then go wash them in hot water with a degreaser soap, dry them good, then I put a little preserving oil on them, to keep them from rusting again, then wipe them dry and put them back in the box.
I also recently tried CLR it works to, just keep your eye on it, and use a good container for it, don't leave your tools in for more than two hours. Then get them out, and go through the same steps as above to wash them off.
Good luck.