Kinda depends on what types of tools you have. If you don't have a bunch to choose from, a cordless drill with a wire brush on the end will clean it up nicely. Probably want to use a brass brush since it is a softer metal. Don't forget the safety glasses as shards of the brush will come flying off.
If you have a compressor and an angle grinder, I'd suggest a mandrel with a 3m scotch brite pad. This would make quick work of it.
Hope that helps.
|