Quote:
Originally Posted by V
a hole saw on curved metal is actually not that hard. use a decent pilot drill bit to make the center hole, then use a duller bit that fits in. that way it will be less likely to "walk" or open up the pilot hole to an oblong shape. Then just hold the drill with both hands and start it slowly and adjust speed while holding the drill in the same angle the whole time.
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Metal cutting hole saw FTW
