Master Lock’s iconic Marksman commercial demonstrated superior strength, performance and durability – the foundation of all Master Lock products. Aired from 1974 - 1983 during the big game, this commercial continues to be well-known and remembered. #MasterLock #ForEverythingWorthProtecting | Master Lock

We put the classic Master Lock 5400 series combo box under the microscope and decoded it step-by-step. No force, no destruction—just technique. This video breaks down how the internal wheels behave, what to feel for, and how a simple decoding method can bypass most common combination lock boxes. If you’re learning lockpicking, physical security, or just want to understand how these mechanisms really work, this one’s for you. ⚠️ For educational and security testing only. Always practice on locks

From the first worker on site to the last to leave, our lock boxes ensure the right people have secure access—keeping work on schedule. | Master Lock

1.7K views · 5 comments | Lock it or lose it. Here's how to properly secure your bike. | Master Lock | Facebook