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How polished can an aluminum finish be?

How can I get a very smooth finish on an aluminum surface?

I need a completely shinny almost mirror like finish.

Is it something that can be achieved using different Milling bits or settings?


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To get something that fine, you'll need a domed buffing bit (link for reference I did not locate one I can guarantee works:

Add some buffing compound to the pad, run a path over it few times, and it might just do the trick.

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You could also hand buff it with a rag and buffing compound. To get a mirror like finish you may need to use multiple grits of compound, using finer as you go.


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Looked around and found this:

or if you're feeling particularly science-y:

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