As with any shiny new tool, he started looking for things to investigate with it, and his gaze fell on a Sentry Safe (produced by Master Lock). On the surface level, this keypad-equipped safe is ...

Behind the gates is Master Lock, founded in Milwaukee in 1921 ... about his "Urban Spelunking" series of stories, in that station's most popular podcast.

Bill Johnson is now attracting a global following thanks to his YouTube campaign against Master Lock — offering a veritable how-to on ways to open its padlocks without a key. “Stay away from ...

My buddy bought a combination padlock at a garage sale. It was made by Master Lock, and was the model with the stainless-steel case with a black dial and white numbers ranging from 0 to 39.