Challenge Lock
Building a simple challenge lock
In the locksport community on reddit, one requirement of moving to Blue belt is submitting a challenge lock. This is sleeper lock that you have modified to be harder than normal to pick. For mine I choose a common and easy lock often seen on American residential homes, the Kwikset.
I did my first one using the pins that were already in the lock with a standard drill, and it was hellish. Made my second using brass stock from Amazon and a dremel and it was a dream.
Click on the images to enlarge them.
setting up a drill to use a a poor-man’s lathe
close up of some of the modified pins
If you are unfamiliar with lockpicking, the idea is that perfectly cylindrical pins are easy to pick. So by adding all these shapes, I am making a much more difficult lock.
a challenge lock is no fun if you don’t pick it yourself!