krakarak wrote: To the author, for the relaxation of the atmosphere, a tongue-in-cheek suggestion - to end these disputes, drill / do not drill, spit / rake - ask a familiar sapper or blast miner to open.
My friend @ balloon3 use your imagination - when there is no insert in the hole, it is possible to insert a hard, curved wire into it and while fumbling with it (just like the movable claw of the insert rotates) grab some part of the sliding lock and withdraw it. It is not known what prevents the lock from retracting, but pessimism alone will not help.
The screw only holds the insert so that it does not slip into the apartment or pull it out. Drilling through in the lower part of the insert causes drilling and screws and thus free (relatively) removal of the insert.
I think that the author is not sleeping in the staircase and has already opened the door.
I don't know what to discuss here.
If the insert has been damaged, it is removed by drilling the fastening screw, if the lock is done the same, the insert is removed and with a simple pick, the lock bolt is moved.
After opening, the lock is removed and cleaned of the filed, or it is repaired, and then either reinstalled in the door, or a new one is inserted and a new cylinder is inserted.
Any other sequences and manipulations are a waste of time.
Professional locksmiths called to the lock do exactly the same after determining the damage to the lock or the insert.
Added after 11 [minutes]: rys57 wrote: krakarak wrote: A drilling through the bottom of the insert causes a drill hole and screws
Have you tried, is it theoretically? I tried. A good drill, a strong drill, it went into the insert (brass or something similar) like butter. I missed the screw and I found no way to hold the hand drill effectively to get rid of the screw.
The trick with drilling the screw is to cut off the edge of the insert and at the same time have good drill guidance in the drilled hole.
If, for example, the lock bolt in the frame is on the right side of the insert, the hole is drilled closer to the left edge of the insert, at a slight angle towards the right side, so that the end of the drill, after reaching the fastening screw, is slightly outside the insert material.
Then we have a fairly strong guiding of the drill in the hole, at the same time the screw is cut outside the insert and its cut end does not remain in the insert blocking it.