Snap-on F50CSA 3/8 Drive Socket Driver

[ChevyEFI]

Is this a replaced extension in an original handle?
The square end is happy to see you. And the cross-drilled retainer seems off.

http://www.ebay.com/itm/291287611311

 

[Wamsutta]

The female square drive is supposed to be flush with the end of the handle. That driver in the ebay link is jacked up; don't buy it.