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get a random orby and just work your way up through the grits till you get to about 400, then polish it will come up mirror finish if you use a cut then polish compoound, be aware that youll only get about 1m inute from each discbefore you need another one, its g\quick and cheap, you do need to fet rid of the mill scale though, a belt sander with zirconiated belts is good for this do this with 40g 80g 150g then move to the orby, takes about 15 to 20 minutes to do a chaine plate this way
sean
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