cool things with wheels, since 2006
I've got one of those sets I picked up years ago. I am thinking they were military because the size is off a bit from your standard 1/4" drive(theft protection?) If you don't have the correct drivers that come with the set, you're SOL, they don't work. Be interested to know if anyone knows for certain.
Huh! That's all news to me, click the link to talk to the experts. They seem to be a cool group of tool collectors