Broken drill bit in oil main

Old Nov 18, 2025 | 04:26 PM
  #1  
Harrisriley's Avatar
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Broken drill bit in oil main

Earlier today I finally got back around to working on my B-block that will be going into my 92 Dakota. The primary task today was drilling out the oil feeds to the main bearings that lead to the passenger side oil galley, using a bit purchased from 440Source. When I was drilling the second main the drill bit snapped off bellow the face of the hole and is now stuck in the oil passage. I have tried seeing if i can free it with a pick and had no luck. I have also tried using a smaller drill bit see if I can drill it out but I can't get anything to get through it. I'm at a loss on what else to try on it. Does anyone have any suggestions?
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Old Nov 19, 2025 | 12:57 PM
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Stack weld with a mig welder until you get enough built up so that you are able to weld a nut to it and use a socket to extract the tap..... This happens more that we hear about, so its not all so uncommon
Good Luck ...
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Old Nov 19, 2025 | 07:50 PM
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Can you grab it with a needle nose priers if so try turning it the opposite direction it was drilling while pulling it out.
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Old Feb 10, 2026 | 02:00 AM
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One of my proudest accomplishments is having learned to re-point twist drills.




snaptube vidmate

Last edited by dkoxla; Feb 10, 2026 at 03:27 AM.
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Old Feb 13, 2026 | 05:31 PM
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Back in the early nineties I had an older guy work for me who extant at sharpening drill bits free hand on a bench grinder.
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Old Feb 16, 2026 | 07:12 AM
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When I was in High School Machine Shop Class.... I use to hand grind Drill bits for classmates and get 20 bucks so they would get a good grade on there finals test.... True story !!!!! lol
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Old Feb 17, 2026 | 07:32 AM
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I don’t remember sharpening drill bits in machine shop, could be why I don’t like it. Wife bought me a drill doctor one year for Christmas I don’t know what ever happened to it.
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Old Feb 17, 2026 | 09:53 AM
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Those work good.... I had to buy one for the shop that I ran.... Got tired of having to sharpen everyone's bits when they dulled them... LOL
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