Yes, this is a very uniquely-sized hex key. I’m glad you found this Easter egg!
At 7/34", it can handle a 7/32" hex hole, if you add a little plastic from a clear poly bag around the hex. Also, if you file just a bit off of the sides, you can put this into a 5mm hex for a tight fit. Voila!
It’s also a new-member orientation tool for robotics teams. Hand them this tool and ask “which one of these is not like the others?”
This 7/34" allen key is only available for a limited time, and may even be removed from our product’s description today.
(Thanks, Richard, for catching this error! I think it’s supposed to be 7/64". We are editing this goof now.)