Uploaded February 2018 | Updated September 2026, 1 hour ago

---

I have cut open a common 4-wheel combination lock and together we will discover how it works internally. We can also visualize what all is happening when he bypass and/or decode one. This video makes several references to video #50 "Bypassing and Decoding Masterlock Combination Locks" (youtube.com/watch?v=A83nYmRJDvg)