I am not there to see your work area. But someone suggested a two by four with holes, slip the tangs into the holes. How about think that a bit larger. Take two or three two by four, and put them together, making a 6 x
- Use your drill press to drill through two layers. Use speed bores of whatever size works. Put the files in, business end down (handles up).
Got to be some way to store those. Of course, you could wrap them individually in grease rags (mechanic shop rag) but that takes time.
What would be nice, is a big long magnet, you could put the magnet up high, and stick all the files to the magnet. Just pull one down as you need to use it.