Since you are not dealing with a stud, you may be able to step up to the timesert dia using the hole as a guide. I was drilling a fairly large, new, hole:


Mcstiff wrote:So it is "good" that the stud is not in there, dealing with that in situ is a pain! I drilled out a stud and installed a threaded insert using a 90 degree drill thing and a "press" attachment from HF. Frankly it was pretty sketchy and I think the insert is a degree or so off but I think it could be done better. If I had to do it again I'd attach the drill guide to a plate that bolted to the head and think about the best way to fix the angle accurately.
Since you are not dealing with a stud, you may be able to step up to the timesert dia using the hole as a guide. I was drilling a fairly large, new, hole:
I may have used some bar clamps but I seem to have blocked out the trauma