"Analogue" Socket Wrench Head

This Thing came at the behest of a recent assignment I received from my 3D-Printing course, which asked that I create a product that may be entered into the market place, and place here for review. To that end I create this, what I refer to as a "Analogue" socket wrench head. As may have already observed, it the main body is virtually identical to a standard socket wrench head, but the inner cavity actually extends beyond the circumference of the body. This (theoretically) allows the head to accept an number of sizes and still be compatible--it may not be "One size fits all," but it is a bit fore flexible that a standard socket wrench set.

Some things to keep in mid if you choose to print this:
-The square cavity is sized for a 1/2 inch drive; if you have anything different, you'll have to modify the file.
-Likewise, the "jaws" of the head may need to be resized according to your specific needs.
-The "BVR" on top of the head is my initials, which was a requirement of the assignme