In a message dated 12/19/2008 8:40:41 AM Central Standard Time,
> Also, don't forget that when drilling non-ferrous metals it is best to have
> zero or negative rake on the cutting edge of the drill, to avoid the
> possibility of the drill digging in, picking up the workpiece (which you
> didn't bother to secure to the table of the drill press because "it is just
> one hole"), and spinning it wildly while it raps the knuckles of the left
> hand. I have the scars to prove it.
Ditto, in spades, when working with plastics. So save all your dull bits for
when drilling softer materials.
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