Results 21 to 28 of 28
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March 8th, 2021, 10:02 AM #21
Re: Broken a Drill Bit Off in an Aluminium Lower
If the lower isn't anodized, boiling it in a solution of water and aluminum sulfate (alum) will dissolve the drill bit. Unfortunately, it will remove anodizing. Don't use a steel pot, as it will dissolve that too.
Boy, I say boy, you're reaching the limits of my medication!
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March 8th, 2021, 12:58 PM #22
Re: Broken a Drill Bit Off in an Aluminium Lower
Sonofabitch! THAT ^^^ would have made this thread WAY more interesting than "Hey guys, I got it out."
I called to check my ZIP CODE!....DY-NO-MITE!!!
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March 8th, 2021, 01:16 PM #23
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March 9th, 2021, 08:38 AM #24
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April 8th, 2021, 09:12 PM #25Member
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Lanc County,
Pennsylvania
(Lancaster County) - Posts
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Re: Broken a Drill Bit Off in an Aluminium Lower
Did the OP ever fix this issue? I'll have to HIGHLY advise against any acid soaks. Also, the person who suggested soaking in alum (aluminum sulfate) is completely wrong. That won't do anything as aluminum is much more reactive than iron/steel. There's really no acid that's going to eat the drill and not the receiver. Best option is to find an EDM or waterjet cutter.
If the OP reads this and still has it, PM me, I'm working on an EDM.
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April 8th, 2021, 09:42 PM #26
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April 9th, 2021, 09:17 AM #27
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April 10th, 2021, 07:46 PM #28
Re: Broken a Drill Bit Off in an Aluminium Lower
Boy, I say boy, you're reaching the limits of my medication!
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