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05-19-2023, 10:29 PM | #1 |
Senior Member
Join Date: Jan 2011
Posts: 342
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Off topic--drilling out broken bolts/studs tip
Sometimes a broken stud or bolt won't come out by welding a washer to it and then a nut to the washer. And I have usually had a hard time getting it center punched right in the center to drill, so the drilled hole was off center. I figured out that using a die grinder with a small ball tip, I could carefully grind a dimple quite accurately in the center of the bolt, then center punch and drill. The ground dimple makes it much easier to center punch in the middle than the rough surface of a broken stud/bolt and the drill bit stays in the dimple rather than jumping around. Cheers.
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05-19-2023, 11:16 PM | #2 |
Senior Member
Join Date: Jul 2011
Location: SF Bay Area
Posts: 6,648
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Re: Off topic--drilling out broken bolts/studs tip
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