Blueaway will leave very small petina scratches but works very well. Others have used good metal polishes and with some work they do the trick too. There is a kit out there that has a drill attachment for this job too but I can never remember the name.

I personally use Blueaway. Don't really like Bluejob it comes as a powder you use with a moist rag , Blueaway is a paste like stuff.

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