I got tired of misplacing (losing!) my spade drill bits, so I finally made a storage “box” for them.

The box has slots for 15x6x2 (mm) rectangular neodymium magnets that I picked up from Amazon.

A little CA glue holds the magnets in, which in turn hold the drill bits in place.

The specific drill bit set I have is from Lowe's, but any 6 inch long ¼ inch shank set of 5 spade drill bits with a maximum hole diameter of 1 inch should work.

I suggest printing with PETG or at least something with less temperature sensitivity than regular PLA.  Also, since the hanger is unsupported when printing flat on the part's back, you may want to enable supports (from bed only works fine.)