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. The shackle was locked; the three-number combination was long ...

Some are so simple that this process can even be automated, as [Mew463] has shown by building a machine that can open a Master combination lock in less than a minute. The operating principle is ...

Indoor combination lock is best used as a school locker lock and gym lock, providing protection and security from theft.Note: Measure your door's backset, cross bore and thickness to ensure you ...