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Old 01-10-2016, 03:05 PM   #28 (permalink)
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How did you line up vertical for the hand-drilling with a hole saw?

45 minutes is pretty darned good for drilling that, in my opinion!

I have attempted hand drilling with hole saws ... and failed ... with hole saws MUCH smaller that what you are using. Plus the aluminum looks like it was used as a grenade shield (deep gouges when the pilot bit breaks and the hole saw skids across the plate)
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