Is there a key that opens everything?

Is there a key that can unlock any door?

A bump key can open any lock that it fits into. It's helpful to have in your pocket if you ever lose your keys, because it can open your door lock and your deadbolt, even if they normally require seperate keys. I keep mine in my wallet.

Is there a key that fits all locks?

What does Keyed Alike Mean? Keyed alike means one key fits all locks, for example your front and back door locks can both use the same key or every lock in an office can use the same key. Having your locks keyed alike is very beneficial if you want to open & close all your door locks with one key.

What is a 999 key?

Bump keys are specially cut keys that can bypass the security mechanisms built into traditional pin and tumbler locks. Bump keys are also referred to as “999 keys” because all of their ridges are cut to the maximum depth (999) in a key-making machine.

Is there universal key?

The universal key or universal scale is a concept employed in music theory in which specific notes or chord symbols in a key signature are replaced with numbers or Roman numerals, allowing for a discussion describing relationships between notes or chords that can be universally applied to all key signatures.