Bump Keys

  Bump keys, also called 999 keys, are keys cut to the deepest cut or a 9 cut for each pin way. Bump keys can be used in any pin tumbler lock. The biggest threat of the bump key is the ability of turning a common or inexperienced criminal or would be spy into a master lock picker. A lock can be bumped and defeated in less than 30 seconds using nothing but the bump key and a screwdriver, wood stick, or small mallet. Concealing a lock pick set poses a challenge; bump keys can be concealed in plain sight on a key chain with normal keys.