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Matty F Matty F is offline
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Default Magnetic clamp drill

On Jun 27, 3:23 pm, John Rumm wrote:
Matty F wrote:
Apparently it's a bit dangerous if the power fails while it's
drilling, because the magnet unclamps while the drill is still turning.


Since these tend to be used where reasonable sized holes are needed, the
rotation speed is unlikely to be that high...

I would expect there is more danger from the thing falling off and
landing on you without worrying about the spinning bits!


I've always thought that those horrible small drill presses were
totally useless. But lately I've had to drill holes or drill out
rivets in pieces of machinery that are too large to put in a big drill
press.
Perhaps a small drill press could be clamped to the piece being
drilled.
It would be more accurate than a hand-held drill, and more force could
be applied using the geared arms.