Mon Sep 21, 2020 4:54 am by MartinHewitt
After identifying the lock as a normal double-bitted key lock the first step is to learn about the lock what can be seen. Is there a key post? How long is it? What is the diameter? Size of the key hole? Where is the bolt? How many levers? The thickness of both? Then make a basic tool based on this information. It is better to make one to large than one to small. Test first the hook for the bolt. Does it lift a lever? Does it turn far enough? It should probably be somewhere between 60° and 90°. In most cases something needs to be filed of. Then the hook for the levers is tested. Is it thin enough? Has it the correct length to move the levers? Most locks do have a control lever here. If the lock is known it can be included in the hook for the bolt. With an unknown lock I pick it with the lever hook. In all the visual steps an endoscope his helpful, but it can be done without just as I did without one in the case of my first safe opening.