I like using counter rotating drill bits (sometimes called left hand bits).
These rotate in the opposite direction and sometimes will bite in and rotate
the bolt remains out. I also use lots of PB Blaster.


"Wayne.B" wrote in message
...
On Sat, 28 Oct 2006 22:01:49 GMT, Gene Kearns
wrote:

(2) the number of them that I have had to drill out that others
have broken off (no fun, but very profitable)....

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As a point of interest, I'm curious how you do that.