Q&A for How to Bump a Lock

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  • Question
    Will installing a lock upside down stop bumping?
    Community Answer
    No, normally it won't. It may only make the situation more difficult for using the bump technique.
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    Not Helpful 1 Helpful 6
  • Question
    If I lose my key, can I use a bump key to lock my door?
    Community Answer
    Yes. Just be sure to turn the bump key in the correct direction.
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    Not Helpful 2 Helpful 13
  • Question
    What kind of padlock is a bump key used for?
    Community Answer
    Bump keys will only work on cylindrical tumbler locks that use moving pins. The deep grooves in the key, along with the force of the bump, have to be able to knock the pins out of the way long enough to turn the key in the lock.
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    Not Helpful 6 Helpful 11
  • Question
    Where can I legally purchase bump keys?
    Community Answer
    They have sets on Amazon and many online dealers.
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    Not Helpful 4 Helpful 6
  • Question
    What would cause a burnt, ashy appearance on the key entry of my lock?
    Community Answer
    Someone possibly lubricated the lock with graphite. Graphite (such as pencil lead) has a gray, shiny appearance, but might appear granular if it was recently applied.
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    Not Helpful 5 Helpful 8
  • Question
    Can I use the bump key to lock door afterwards?
    Community Answer
    You can lock a door with a bump key in the same manner, as long as you turn it the opposite way you turned it to unlock the lock. If you don't turn it the opposite way, then the bump key will unlock the door.
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    Not Helpful 1 Helpful 1
  • Question
    How do I bump a lock if the teeth on the key face down?
    Community Answer
    Remove the bump key and turn it upside down then put it back in and try again.
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