There is no "master combination" that can open any lock. There would be no use for the lock if that were the case.
locksmith
All Locks Have A Different Combination So There Inst One
avril
Sounds like a keyboard.
Go Keyless, Global Source, Arrow Lock, Schlage, Master Lock, and Emtek are all companies that manufacture combination door locks. They manufacture several different varieties of door locks.
You have a few options. One, you can change out all of the locks with the same type of lock of which a master key can be made for all of them. The other is to change them out with the exact same lock which the same key will unlock each one. If these are padlocks, you can go with a combination lock which you can get changed to the same combination for all of the locks.
key, cay
I think combination locks are safer since key locks are easy to break into with a knife or a ice prick to unlock the key lock.
maximum of 1000 combinations (10X10X10). Work with one lock and set it to read 000 . Count upward to 1000 by "ones". As you turn combination dial up with one hand, test if lock opens with other hand. Takes about 5 minutes and hopefully both locks are same combination.
a computer keyboardKeyboard/Typewriter
a computer keyboardKeyboard/Typewriter
You have to have a combination. If you have a key lock you don't need a combination, all it is is a lock that says master and a key to turn it and then it opens what you have in it.