This works with with ml 175 176 178.
Master lock m175 won t open.
Open the lock with the factory set 0 0 0 0 or the previously set combination.
Lps or liquid wrench down the shaft and up into the keyhole.
These things are junk.
With combination locks keep rolling the numbered tumblers around and around and then set them on the proper combination and try to open.
Resetting master lock no.
You can use a special key included with the purchase of the lock to change the combination.
Therefore master lock does not have record of the combination that the owner set.
Several blows from a ball peen or small sledge hammer will wrench the shackle loose internally and force the lock to open.
The lock cannot be reset unless it is in the open position.
I don t know where they came up with their numbering system but the master lock 175 m175 have two different types of locking mechanisms inside of them.
The master lock 175 is unlocked using a personal combination.
X research source however don t let that discourage you.
To reset the 175 and 176 you will go through the same process using the k175 reset tool.
This is a 3 second way to open a master lock combination lock very quickly and easily.
Please note that master lock does not reimburse for locksmith services and or fees.
If you don t know the serial number then you can significantly narrow down the number of possible combinations to crack your lock method 1.
To provide enhanced security long term master lock discontinued imprinting a serial number on the lock body of combination locks sold through retail locations.
Give it a couple more taps with the hammer.
If your lock is attached to something you will need to call a locksmith for removal.
Note that a standard 40 digit master lock has 64 000 possible combinations that may open the lock.
A master lock 175 is a basic shackled combination lock.
Are you seeking the same answer by asking different questions.
The main benefit from purchasing a 176 is that it has a control key override just in case you don t have the combination.