Well just got one for brass along with the solution, it's a lyman that says it can fit 4 full sized pistol frames so Ill use it for my annual deep cleaning of as many gun parts as possible. My question is what else do you guys use the ultrasonic cleaners for? I'm thinking about throwing a couple of lightly surface rusted Lee dies in just tap water to see if I can remove the surface rust. What else do ya'll use em for?