When used with combination wheel locks, the blade is inserted beside each wheel, and the wheel is rotated. Changes in the axle are felt as 'flat spots' - which indicate the correct position. The same process is repeated for each wheel, and the combination is revealed. Once all wheels are aligned, simply rotate all wheels one position down at the same time until the lock opens.
With a little practice, almost any combination lock: padlocks, suitcases and keyboxes can be rapidly decoded in one or two minutes .