These cotton backed AO belts are a good tool for sharpening, fine finishing, and polishing of metal. It's also well suited for finishing of contoured hardwood.
 
Special-treated AO grain, top-coated with a grinding lube
Belt backing lis 100% flexible cotton
Sold In Packs of 5 and 10 belts
Available in grit P120, 220, 320, 400, and 600