Tension Wrenches

Top- & Bottom Of Keyway (TOK & BOK) Tension Wrench for Lockpicking

If you get a bit confused about how lockpicking works due to all the English terms, we are happy to explain the difference between BOK and TOK.

Bottom (bottom) and Top (top) do not correspond to how we install our locks in the Netherlands. These are terms that were coined in America, where cylinder locks in doors are often installed the other way around. The pins are at the top of the lock in America, unlike in Europe, where the pins are at the bottom of the lock.

BOK tension wrenches are less popular because they limit space. No room for TOK? Then a BOK wrench can still be valuable. Moreover, a low #1 pin can hide behind a TOK tension wrench. In this case, a BOK tension wrench may be the better option.

The BOK Tension Wrench offers less space in the keyhole for the lockpick, but can be a valuable alternative.

Advice on Common Mistakes and How to Avoid Them

1. 1. Using Too Much Force.
      A common mistake is applying too much force on both the tension wrench and the pick. This can lead to damage to the lock or your tools. Remember that lockpicking is more about finesse than strength.

2. Not Listening to Feedback.
   Another mistake is ignoring the feedback that the lock provides. Every movement of a pin gives crucial information. If you do not listen and feel attentively, you will miss important clues for successfully opening the lock.