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?
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
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
Posts: 1102 | Location: Denmark | Registered: 15 October 2001
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.
Jim Kobe 10841 Oxborough Ave So Bloomington MN 55437 952.884.6031 Professional member American Custom Gunmakers Guild
Posts: 5535 | Location: Minnesota | Registered: 10 July 2002
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.
