Re: Bad Stud thread
Bratton's supplies a tool jig kit #8235 that allows you to drill out the stud without disturbing or removing any of the other studs. The jig comes with a locating guide and bushings, a burr to center the hole, drill bit and two taps including a guide bushing to install a Helicoil. The DRILL BIT STINKS, BUY A CARBIDE ONE. I just completed doing 3 studs in a little over an hour. With your stub breaking at such a low torque setting you might consider replacing all of the other studs.
Take the job slow and easy
Good luck
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