Intermittent cuts scare ppl. I think .200 would do it unless you bevel the edges pretty heavy. Don't be scared to break out the grinder and just bevel the crank yourself, that's what I'm doing/did. Unless you're swinging 6 pack rods and some lump of metal pistons, it's still going to be a remove balance job.

Or just clamp it in V blocks and mill it, then pretty up the high spots with a grinder. This isn't rocket science. S/F....Ken M