I have a Harbor Freight near me, and I think I will go looking for an "abrasive ball". A timely thing, this thread popping up when it did. I am just about to polish the Nervar Star crank on my Moto GR. I don't have the chainring bolt wrench at home, so I am bringing it to work for disassembly and eventual polishing. I did a little by hand, but it just not up to what I wanted.
I could do some serious polishing at home in Houston, with all the tools etc. Now I am in a one bedroom apartment, and even my DeWalt cordless drill is completely dead. Replacement batteries are $90 each!?!
I may just use the drill at work next Saturday when I am off. If anything it will give the younger coworkers a glimpse of the dark side.
I mean refurbishing vintage bikes of course.,,,,BD