[Realbigo]

I was taking a .303 SMLE apart that I just bought from a pawn shop, and it seems that the rear trigger guard screw is broken off. Has anyone here ever tried to drill out a screw on a firearm? I'm thinking a 3/16 titanium bit in a drill press would be best, but I could really use some advice. Should I start from the broken end, or the other side?

[Hoppy590]

have you tried one of those "screw out" type bits?

i used one for some automotive parts and it worked acceptably

[Treo]

I would try an EZ out first befor I tried drilling out the screw

[DRYHUMOR]

+1 on the easy out

If you drill out a small pilot hole first, an easy out bit will have something to grab onto. Take your time and try to center the pilot hole as best you can.

If the easy out does not grip enough to turn the screw, increase the pilot hole to the next fractional size up and try again.

Put some penetrating oil on it from both sides and allow to soak in overnight before trying to turn the screw out.

Worse case you may still have to drill it out, a screwdriver with a long flat that doesn't taper may be enough to grab the remains of the threads and turn them out.

[Iron Mike]

Dryhumor is right on the money. Before you drill your first hole use a small prick-punch to dimple the center of the screw, this will keep the drill from wondering, and sometimes the impact breaks up the crud and helps loosen the screw. Good luck

[Mk VII]

consider using a centre drill to start it off, or al least a stub drill to stop the bit wandering.

[Hk91-762mm]

I suggest you take it to someone who has a milling machine--And use a tiny LH drill the counter rotation can snag the screw and back it right out. If its rusted in You will probably have to use the proper size bit and re tap the hole -Thats a job for a mill That can center to the thousandth After drilling put the tap in the chuck and turn the chuck by hand to run the tap into the hole

[Realbigo]

Thanks HK. I hadn't even thought of that. I'll try and find a shop in my area.