I bet it does.
I have a gauge to specifically check that gas key - lower receiver ring gap tolerances. A fancy two quarter test.
There are a number of parts where tolerance stacking of good parts will result in carrier key impacting the lower ring as well.
Here are a few that can be checked...
Yesterday, making a lathe center gauge for aligning 60 deg tool bit for single point thread fabrication. I have the Browning & Sharpe
style that holds the gauge with a spring with the gauge slot. I wanted a more secure hold for the gauge so I used 4-40 set screws. Used a softer spring rate in...
Interesting demonstration of the how a small tap wrench is Not a precision instrument. You may want to consider avoid using the T-wrench for small taps to avoid breaking them off in the work.
Joe Pie video is well done.
https://www.youtube.com/watch?v=C0PBPGjd0Pc
I do use small Starrett tap...
Not a gunsmith repair but rather a nice inventory upgrade; a small bench top vise for holding small micrometers in particular. I find mic-ing small parts requires a third hand hat trick sometimes. Now, I can just hold the part in one and dial the micrometer with the other....no drama...
Most likely the damage will occur due to compression / distortment of fine choke tube threads, from the expansion of the Brownells' tool.
I was tinkering in the shop today pondering yet an alternative solutions to driving the choke tubes out using a hex drive but internally a precision drill...
^^ An expanding collet with knurling to engage the internal surface of the choke tube.
I presume a crescent or specific sized wrench on the tool flats to turn the tool.
Thanks !
As a last resort for employing an impact driver on a gunsmith sized fastener I like the Laser brand. Japanese mfg for use on
small motorcycle parts. It has a 3/8" male drive, when coupled with an adapter to 1/4" hex head, it allows use of all / any magna-tip
gunsmith bits. Its smaller mass...
I would use a universal choke tube magna tip or a hollow ground driver bit (both with hex head drives) mounted in a cordless impact driver. It's easy to fabricate a perfectly fitting driver to the slots in the choke tubes. Secure the barrel in a padded vise. Make sure the choke tube slots are...
Tinkering in the shop yesterday.
Years ago I fabricated some arbors, long and short, for using Dremel tool accessories in cordless / drill presses etc. The problem with the Dremel power plant, even the cordless, is that several thousand rpm is the slowest speed!
Dremel threads are the same as a...
So, I was pondering the the manner in which to de-burr that #53 cross-drill hole (0.052") in the #4 screw. The smallest reamer I have is a 1/16th (0.062"). I came across these flexible nylon brushes coated with abrasive, designed for "micro-deburring"; they can be hand turned or powered.
I have...
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