I know their are hundreds of products out there and I know the old to clean or not to clean vintage tools ideas also out there.
I myself tend to leave that old vintage tool alone unless, rust is starting to take its course and then I try my best to lightly take away any rust,
just to preserve it for the next generation to enjoy.
The following post story has two very nice links for you to look over, the first link is a short video of just one product, (out of many) to choose from.
The second link is just the place to buy the product in question. Mind you I am sure most of you use different techniques all of which are all good, this is just an example of one product out there.
https://www.garagejournal.com/forum/showthread.php?t=418067