In Reply to: RE: Aluminum plate thickness for amp project posted by gilmorneau on June 4, 2015 at 18:04:39:
For some of the larger cutouts, I'd also suggest a circle cutter (I linked one just for the picture - no experience with the brand or seller). I've had good luck with step drills, but my experience with hole saws has been somewhat mixed. The circle cutter has been great for the holes beyond the step drill's range, and produces smooth-edged holes that require very little filing.
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