Pinchweld! That's the stuff. We do use that at work. It can be pretty bulky, tho for a 12" it should look alright.
There is also an edge trimming used for cutouts in panels, a search for grommet strip should work. From memory RS Components and Element14 stock various sizes down to 3mm and for various thickness sheet down to 1mm.
Last edited by MrB; 16-10-2012 at 12:27 AM.
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