all you need is an 12 volt car battery charger, baking powder, a container to put your parts in and some scrap steel to surround your rusty part.
connect the + side of the charger to the metal surrounding your object and the - side to the object. pour the solution of water & baking powder into the container with your object and leave over night.
DO NOT USE STAINLESS STEEL THOUGH!!!!! it turns your water very toxic & harmfull. also dont get you + & - mixed up or your rusty part will be eaten away!
dan
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