So I had these “drill bit thingos” hanging on the pegboard in my lab, but I wanted to store them in a component drawer instead, but I wasn’t sure what the label should say. I searched “the usual places” to try to find the order in which I purchased them, but couldn’t find such a thing. In a last ditch effort I put the number printed onto the case into my search engine and did an image search on it: 15050090001. And there it was! Turns out the drill bits are called “Step Drill Bits”, as seen here: 1PCS HSS Co 3-12mm 4-22mm 6-24mm Spiral Groove 1/4″ Hex Handle Step Dril Bit Hole Cutter Cone Saw Stepped Drill Power Tools. Problem solved.