Ever get to an auction or flea market and stare lovingly, but in despair, at a hand plane that you’d love to own, but are going to pass on because it’s too rusty? There’s a solution for this problem. Electrolysis. It’s crazy cool, and easy to do. Here’s the overview; submerge the tool in a solution of baking soda and water, connect a battery charger, and let it sit overnight. By the next day the rust will have sloughed off.
The beauty of using electrolysis for rust removal is that you’re not abrading the tool and removing metal. It’s better for the tool, especially if you’re concerned about its value, if you don’t hit it with sandpaper or a wire wheel. This, and the ease of doing it, makes electrolysis the perfect answer for restoring old tools. Electrolysis provides a very easy way to get rust out of a tool’s nooks and crannies.