quarter inch hex driver bit adapter thingy

I wanted to drive something from a 1/4 inch hex bit. Unfortunately I couldn't find any such thingy. Sure, it isn't tough to make one, but seems like such a standard thing, and being lazy... So here it is--a generic shape with a hole for a quarter inch hex driver bit so you don't have to make one. Drop it in your project, attach it to whatever you'd like, and drive away. My print fit snug, I had to tap it on. Feels like it's not going to come off too easily. Should be a standard shape in 123d.