ive been trying to remove a screw that holds the trigger group assy. in the frame of a fine shotgun to get t6he stock off to replace the top lever spring i have soaked it for a week and still cant break it loose i dont want to bitch up the slot. any suggestions?

Brass punch and give it a good whack straight down. That should break it loose then.

I grind a screwdriver bit to fit and set it up in the mill using the quill to exert downward pressure to keep the bit in the slot. This works for even the toughest screws such as threaded hinge pins.
Steve

ill give it a go and let you know how i make out. thanks

still wont move. its not rusted in just a screw that is timed to the action and is stubborn

i filed a screw driver to fit the slot . i dont have a milling machine. i wish some of you folks were closer. there isnt much around here

sometimes it takes a shock to move, like in an air impact tool - there is a driver on the marked that you put the bit into and hit it with a hammer. you would have to make the bit to fit and have the gun well clamped, but that should take it out

For stubborn screws i grind a screw-bit to fit and then use a cordless drill with the torque set fairly high. The "beating" will eventually loosen the screw.

My $.02

SKB had it right. I use the 1/4" shank insert bits and make sure they fit the slot. If you want I could attempt it for you, with this method I have never failed to get a stubborn screw loose and it will only cost you return shipping, email me if you like.

Some of the other methods may damage the screw slot.

fit a screw bit to it.. get it good and "in" .. rap it with a hammer, try to TICGHTEN it just a hair, then it may back right out

Not sure if it will help in your case but I've had good results be applying heat to the screw and then allowing it to cool a bit. The expansion and contraction seems to break the lock and breaks down any loctite. Grind a bit to fit well and insert into the screw. Then heat the bit or shaft of the driver with a torch or good heat gun. The heat will transfer to the screw with out affecting the surrounding area.

i thought of heat but im afraid of the finish. thanx

quote:

thought of heat but im afraid of the finish. thanx

Like Gzig5 said you can heat a rod or screw driver. Use it to transfer the heat. I've also used a plan old soldering gun.