What is a bump key and should you be concerned?

Pin tumbler design locks are probably the most popular locks in the world. These types of locks come in different sizes and finishes, can be used in exterior and interior doors, and they're suitable for residential and commercial applications. They can also be picked quite easily with a "bump key," sometimes also called a "999

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How did i do cutting this bump key/do you think it will work : r

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Thought you guys might be interested in a test project I did. I 3D

How did i do cutting this bump key/do you think it will work : r

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