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Posted by Jim Stewart on May 5, 2008, 2:19 pm
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SteveB wrote:
> Today, I was drilling a 1/4" pilot hole in a 1/2" plate. Going to drill a
> 1/2" final hole.
Besides the obvious clamping issue, you'll want
to keep your pilot hole diameter not much bigger
than the size of the non-cutting tip of your
final hole.
The plate was about 6 x 9". I did not clamp it to the
> base. The drill caught the plate and began spinning it. I just jumped
> back. The more it spun, the more it became out of balance, and it finally
> snapped before I could reach in and hit the switch. It went flying, but
> didn't do any damage. Broken drill bit was all.
>
> Accidents happen when we are doing the most mundane common tasks, and do not
> observe the MOST COMMON safety precautions.
>
> DOH!
>
> Steve
>
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> 1/2" final hole.