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Old 05-01-2019, 06:36 PM
gcrank1's Avatar
gcrank1

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Too bad some people use the WRONG Thread Locking Stuff.
But it is what it is. Heat will be Required to break down the bond.
It is absolutely imperative that the hole drilled into the screw stub be in the center!
A left hand drill bit gives you a chance it might unscrew while drilling, a std drill bit has no chance of that at all.
The trouble with tapping something into that hole is it spreads the screw tighter to the sides.
If the hole is not perfectly centered and you have to go to bigger bits (hoping to be able to pick the left over screw threads out) you will eventually be drilling the gun threads on one side and wrecking the original drilled and tapped hole.
This is best done in a mill, NOT a bench vise with a hand drill; even a drill press is iffy unless you can rig it more like a light duty mill.
The top of that broken screw is best leveled off with a small end mill, indexed and started with a center drilled with a (duh) Center Drill NOT a std twist drill.
Basically, if you dont know what Im talking about in these comments you are likely in over your head in attempting this. This is real gun smithing.

Last edited by gcrank1; 05-01-2019 at 07:25 PM.
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