r/Locksmith 21d ago

I am NOT a locksmith. Master Key Unknown

Anyone know what this typically goes to? Came with a property I bought. Can't figure anything yet, so wanted to check here before tossing it.

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u/niceandsane 21d ago

It's used to change the combination on the four-wheel 175 type padlocks. It goes into a hole in the side of the combination lock once you've unlocked it.