Results 11 to 20 of 28
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March 6th, 2021, 10:38 PM #11
Re: Broken a Drill Bit Off in an Aluminium Lower
As I mentioned, use a smaller size bit from the other side. Then punch out the broken bit. Then drill through the original hole with your new 5/32" bit. This will insure the holes are aligned and the pin fits when finished.
Power always thinks...that it is doing God's service when it is violating all his laws.
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March 7th, 2021, 12:10 AM #12
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March 7th, 2021, 02:32 AM #13
Re: Broken a Drill Bit Off in an Aluminium Lower
How are you establishing where to drill?
There are two kinds of guns. Those I have acquired, and those I hope to.
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March 7th, 2021, 03:31 AM #14
Re: Broken a Drill Bit Off in an Aluminium Lower
It should be obvious, but be sure to brace the side of the receiver with the bit on a flat surface with a smallish hole directly under the bit piece. You don't want the force of the punch spread across a larger surface and bulging the wall.
Attorney Phil Kline, AKA gunlawyer001@gmail.com
Ce sac n'est pas un jouet.
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March 7th, 2021, 10:16 AM #15Active Member
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Re: Broken a Drill Bit Off in an Aluminium Lower
Using the jig, I'll just touch the other side of the frame to create a small, cone-shaped, crater. I don't want to break into the pocket; I just want to create that cone so I can center a smaller bit down in the bottom of the cone and then drill through from there. If I were to just get at it with a smaller bit, I'd risk being off center, as it wouldn't self-center like the correct size bit would.
Better to be judged by 12 than carried by 6...
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March 7th, 2021, 12:49 PM #16
Re: Broken a Drill Bit Off in an Aluminium Lower
^^^ That's what concerned me. Good plan.
There are two kinds of guns. Those I have acquired, and those I hope to.
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March 7th, 2021, 03:06 PM #17Grand Member
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DeepInTheWoods,
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Re: Broken a Drill Bit Off in an Aluminium Lower
Once i knew guy that wallowed out the pin holes too much .
Solved the issue with small stainless machine screws for pins and lock nuts.
Gun shoots fine.American by BIRTH, Infidel by CHOICE
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March 7th, 2021, 05:47 PM #18Active Member
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Re: Broken a Drill Bit Off in an Aluminium Lower
No need for bolts although that would have worked if I needed them. That or filling the hole(s) in with epoxy, machining/filing them flush and then drill again. Either way, I won't need them.
I did just as I said... I had to clean out the broken pieces of the bit from the jig first. That was easy; I just used a punch and pushed out those pieces. I then assembled the piece into the jig and just touched the the 5/32" bit to the surface across from where the bit broke off. That formed a nice little cone for the 1/8" bit to sit in. I pushed the 1/8" bit through the wall and then used an 1/8" punch to push the shattered 5/32" bit out the other side. I got it started and then pulled part of the jig away, as I was not about to push that garbage through an additional 5/8" of aluminum if I didn't have to. I left one side of the jig in place to stabilize the punch... After that, I put the piece fully back into the jig and drilled & cleaned all four of those holes with the 5/32" bit. Back on track again! Thanks folks!Better to be judged by 12 than carried by 6...
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March 7th, 2021, 05:58 PM #19
Re: Broken a Drill Bit Off in an Aluminium Lower
Yay!!!
I kept wanting to post a pic of a recycling trash can as a joke, but didn't want to discourage you!
I called to check my ZIP CODE!....DY-NO-MITE!!!
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March 7th, 2021, 06:05 PM #20
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