Saw blade
This trick will help you anyway! Proceed with a small saw blade of a jigsaw as in the photo below. It is best to use a thin metal saw blade with fine teeth. Cut the saw with a pair of pliers so that the end also has teeth and is not too smooth. Make sure there is a large piece of tooth at the end.
What now?
Take the saw blade in your hand with the teeth of the blade pointing towards you. Carefully push the saw blade into the lock. So you have a fishing rod to fish the key from the lock. Move the saw blade up and down and towards you to slide the key out of the lock. Do this with the necessary patience and you will see that the key finally comes out!
Open the door
Did you succeed in removing the broken key? All you have to do now is get a spare key from the neighbors or a family member and you can go back in! Do you not have a spare key? Then the key maker can copy the key with the two broken parts of the key. If this fails, then there is unfortunately nothing else than to have the locks replaced.
Source: MrHandwerk Hausmagazin | Image: videostill | YouTube