I have designed a holder for Forsner drill bits for my tool wall. You can fix the holder with a Ø3.5mm screw. Suitable for Ø15 Ø20 Ø25 Ø30 Ø35
I have also made a holder for a step drill as you can see on the picture on the right here the link: Step drill holder by Magr099 - MakerWorld