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Bcs19 has a video on how to make a beer can shim to open up a padlock, extremely handy for the dozens of old locks we all have with forgotten combinations… – Link.

Related lock and unlocking:

  • Beer Can Padlock Shim – Link.
  • Bump keying – Link.
  • @ DEFCON – lock picking – Link.
  • HOW TO use the PSP to open Masterlocks – Link.
  • Locksport International visual picking guide – Link.
  • DIY Robot lock crackers – Link.
  • HOW TO – Make a quick, low-cost vibrating lockpick… – Link.
  • Safe Cracking – Link.

Phillip Torrone

Editor at large – Make magazine. Creative director – Adafruit Industries, contributing editor – Popular Science. Previously: Founded – Hack-a-Day, how-to editor – Engadget, Director of product development – Fallon Worldwide, Technology Director – Braincraft.



  1. jhurliman says:

    These are very easy to make and work wonders. My roommate had all of his stuff stored in a trunk with a combo lock just like the one in the picture, and I built a shim out of a Mountain Dew can in about 10 minutes and the lock popped open in about 10 seconds. The aluminum can shims get destroyed after opening two or three locks max though, so either invest in a more permanent one online or build a couple of them to keep around.

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