Ouch. Table saw?
3" hole saw. The pilot broke and it went for a ride.
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Damn, that's a difficult one to defend against. What would you do
differently next time? Did you have both hands on the drill motor?
You just said it. Keep both hands on the drill motor.
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I like to use my drill press for that sort of thing, otherwise a beefy
1/2 inch drill motor with a side grip. You can still get hurt if the
the cutting edge locks up and spins the drill motor out of your hands
but at least it's not a nasty cut.