Had a badly rusted planer bed to clean up. I know that some have been using scotch brite pads under a wire brush, but there's a better way. I used a 3m Deburring wheel chucked into my 1/2" hand drill. The wheels are not cheap, but the results are freekin' awesome. I believe it took me a total of 3 minutes to clean the polished area between the rollers. You can see what I started with to the right.
https://www.grainger.com/product/SCO...rchQuery=4zr70