Bump Keys
What Is a Bump Key?
Most people think a locked door affords them security, but to anyone who knows how to use a bump key, a door lock is just a minor inconvenience.
Bump keys are keys cut to a special design that will allow them to be used for picking pin-tumbler locks. Pin-tumbler locks are the world’s most popular lock and these include exterior door entry locks for homes. The process of gaining entry using a bump key is called “bumping’, and it can be very effective.
All the cuts on a bump key are made to the maximum depth, so any key blank can be made into a bump key. Bump keys are manufacturer-specific. So, a full set of bump keys would include one for each of the major lockset manufacturers.