The Master Key Storage Lock is designed to hold keys. It opens with a 4 digit combination and can be used as an alternative to hiding keys. There are two models, the wall mount model, shown above, and a model that hangs on the doorknob, similarly to the lockboxes used by realtors. We found two ways of recovering the combination: the "feeler gauge" method and the "visual" method.. The Feeler Gauge Method The Visual Method Lockbox Use Precautions Return to thumbwheel lock home page. Return to Masterunlocked home page

Recovering the Combination for the Master Lock Key Storage Lock