What's that little hole in this lock for?

What is the purpose of the small pinhole found in many locker locks next to the key hole? It’s a drain hole to allow rain water and condensation to drain out from around the spring under the hasp.
What is the purpose of the small pinhole found in many locker…
https://www.quora.com › What-is-the-purpose-of-the-small-pinhole-found-i…

It’s just for lookin’ through.

In addition to what @Inspired_2write posted, water drainage from the lock is important in freezing weather, because water expands when it freezes.

It also serves as an injection port for lock lubricant.

There is a small button inside for a factory reset, in case you lose your password.

It’s for the insertion of a small wire to hold the pins up against spring pressure when a locksmith can picks the lock.

Water drain hole so it can be used outdoors.

@ucme told me that it’s for lookin’ through.

Been out all day with my daughter & so missed this.
Being a locksmith myself, this would’ve been right in my wheelhouse, but I see Google has already done my job for me, nowt more to add!

Liar, liar your knickers are on fire!

@ucme For once and for all, who are correct then, the reset Jellies or the drainage Jellies?

Both are true, although It’s less of a reset & more a case of re-keying!
I won’t bore you with the details, my work is not as exciting as it may seem, although there was that one time… :D

@ucme What about the reason you told me??You know the one

@sallyfromthealley Forgive me, but I have forgotten, who even are you dear? :D

@ucme XD