I've done some rust removal from heavily rusted tools with house hold vinegar. . I did extended multi day soaks and ended up with a clean grey surface but finely pitted/ etched by the vinegar. The etched surface was more prone to rusting than where the metal had been polish smooth on the cutting edges. So the only real advise I'd give is to follow up with a polishing. And a little Ruffino Classico after all your hard work.