> I think key manufacturers typically have a few dozen different keyways that they use repeatedly.
I feel like you are overestimating the variety of keyways. Like 90% of door locks in America either use the Schlage SC1 keyway or the Kwikset KW1 keyway.
Pcat0 t1_j3l9tqh wrote
Reply to comment by I_SOMETIMES_EAT_HAM in How keys works. by -birdbirdbird-
> I think key manufacturers typically have a few dozen different keyways that they use repeatedly.
I feel like you are overestimating the variety of keyways. Like 90% of door locks in America either use the Schlage SC1 keyway or the Kwikset KW1 keyway.