i don't have any cleaning apparatus, so far i have been using evapo-rust, soap, rubbing alcohol and manual labor.
i have though about getting some sort of small bench top device, would ultrasonic baths clean off surface rust? is it like a fancy rock tumbler?
i will go google this, i've thought about it before and i do have a couple dozen screws that need cleaning or replacement

any recommendations welcome
thanks
-s