by Eyes_Only » 3 Oct 2007 7:29
Most locks don't need a lot of tension. Applying the same amount of pressure you would use when pressing any key on your keyboard is usually enough in most cases. But then again some padlocks may need more to help overcome the return spring tension on the plug or if the lock is old dirty and binding. Then you would have to crank it up a little bit.
If a lock is a puzzle, then its key is the complete picture