The trick is similar to the previous one, but instead of using scissors, we will use another key.

By inserting it into the internal lock, it will push the stuck key outward.

Third trick
It has become very popular on social media because it is so effective. The key must be in a vertical position. Heat a piece of silicone with a lighter until it melts. Immediately place the melted silicone on the lock, in correspondence with the blocked key.

Apply strong pressure for a minute, until the silicone cools. Then pull back the silicone to help the key come out. Do not pull forcefully to avoid the silicone breaking.