Originally Posted by ToniH.

Hi,

seems I’m out of luck sourcing it second hand or anything similar.

thanks!
toni

Originally Posted by albrt

I've always been able to find a socket with thin enough walls without having to grind it down - you just have to try a few. If you have a pawn shop or other second hand emporium that sells loose tools, you can look for a thin-walled socket and probably get one for a buck or less. 16 mm sockets are somewhat rare when you're looking through a bin of old sockets because 5/8" is very close - I've seen them labeled as both.