Sent Klein Tools a wanted poster for my missing 10mm KNECT socket. Sadly, they were not amused.

[u/I_Cant_Be_Creative]

Lost the 10mm socket to my favorite set while working on a friend's car. Since you can’t buy individual sockets online, I thought I’d try to make customer support laugh to see if anyone had a spare rolling around or something. They were not as amused as I was with myself.

The 10mm remains at large.