Scotch-Brite abrasive pads work great to put a brushed finish on some of the jewelry I make. Recently I decided to be a bit more scientific — I bought four types, with different degrees of fineness. I used a copper sheet for the quick test. Sterling would’ve been better, but I can’t afford to sacrifice that much to science.
I use the 7448 Ultra Fine for most work, and the 7447 Very Fine for some basic scratch removal beforehand, should the work need it. I don’t see a big difference between the 7447 and the 6444 Medium in terms of scratch pattern. Once or twice, I’ve used the 7445 Ultra Fine before polishing, to good effect. Anyway, I mostly documented this so I could remember which pad is which, as the Very Fine and Medium pads look a lot alike — one is maroon, the other brown — and there are no intelligible markings on the pads themselves.
They all worked out great — and I’ll hold onto the test pad as a reminder of what each type will do to a metal surface. I hear you can even use ’em to clean your pots and pans!