If you're wondering where I got this ... I heard it from a friend... Who heard it from a friend... Who heard it from another...
There's two more in the toolsets in both my vehicles, but it's too damn hot to go dig 'em out right now. Can anybody top 9? YOUR own tools... don't go rummaging in your shopmates' drawers. (heard it as soon as I said it)
I've got at least that many if not more in different size drives and sets of tools - usually bought when I couldn't find one and a whole set was cheaper than just buying one socket