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Thumper · 12-16-2021, 11:29 AM

One way to help center a drill bit on uneven broken stud is to use a punch. Take your time getting the hole centered. Punch drill, punch, drill...The punch also has the side effect of loosening the threads in the head. I always get some PB blaster or equivalent on there to soak before starting the process.

Thread size should be the same in the head as on the exposed threads. You can use a nut from holding on the flange to see what the size is. Maybe M8 x 1.25 (post 22 this thread)

12-16-2021, 11:29 AM	#25
Thumper Join Date: Feb 2021 Location: Kansas City Posts: 2,328	One way to help center a drill bit on uneven broken stud is to use a punch. Take your time getting the hole centered. Punch drill, punch, drill...The punch also has the side effect of loosening the threads in the head. I always get some PB blaster or equivalent on there to soak before starting the process. Thread size should be the same in the head as on the exposed threads. You can use a nut from holding on the flange to see what the size is. Maybe M8 x 1.25 (post 22 this thread) Last edited by Thumper; 12-16-2021 at 12:40 PM.
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