OTU mode is great for day use lockers whereby each person that walks up to an open locker enters their own code and use that same code to open. Optional standard mode (w/ a flip of switch on back) would be just one static combination.
Manager key overrides combination and allows code discovery and lock can be set to a new combination. One key controls all locks in the group.
No matter what size the tool, this combination locker lock resists attacks to the knob with a ratcheting style knob that rotates when forced.
The most competitive pricing on an all metal combination lock with key override with many of the more advanced features of locks (but minus the batteries!)
