Preferably with angle die grinder but straight with work also. Good SS polish compound. And don't forget a lot of beer.

they are a rather dense felt pad. I use them all the time from polishing SS, chrome and even home made knives etc. Don't be afraid to wet sand bad areas with a fine paper. You can experiment on underside to see what you can get away with.

BTW I didn't get a link but I bought a few dozen on eBay. More than I'll in probably ten years. They hold up well.

Just do a quick search on eBay or google for 3" buffing pads.

You can also get them for 4" electric angle grinder.