I picked up this combination 1/2- and 1/4-inch hex drive set in a solitary holder at a flea market a long time ago and pretty much forgot all about it. Missing a couple 1/2-inch drive sockets and possibly one 1/4-inch drive socket. Nothing is marked, not the holder or the tools, but everything about it screams Duro Metal Products to me. I could be wrong - as these handy-dandy household utility type hex drive sets are really not my area.
I know they're common - with lots of examples popping up on various threads over the years here, although I'm not sure I've seen one exactly like this. I never did try to figure out what set it was, and I am kind of hoping BK (four.cycle) can. If you can identify it, and it is a Duro/Indestro set, please cite the model number and/or link or post its catalog image, BK.
My not-so-secret ulterior motive for a catalog photo is because I am actually uncertain how to re-assemble the pieces in the holder the way the factory intended!

I am NOT kidding. The holes look instinctively to me like they're for the L-handle and the drive stud in the ratchet, but that doesn't work. The hinged clip won't close that way, and even if it could, the sockets would fall out. The sockets need to be under the hinged clip. Any other way I try though looks clumsy or at least less than ideal or factory correct to me.
Besides its capacity to humiliate me, the only other remarkable thing about it, in my opinion, is the fact that the midget sockets include a square service opening and a radio thumbscrew service opening. I've seen those in a few old sets before (Husky, as I recall), but not too many others. (Again, it's possible I am mistaken, that they are standard in these type sets, and I am just not in-the-know on that.)