I was kind of surprised to discover that not all of these small screwdrivers that are popular for drone maintenance have the same diameter. I was going to print some end caps that I downloaded, but when I checked the diameter I realized that they were the wrong size!

I probably should have searched more for another set, but instead I just made this parametric one so that all sizes are covered. I've included STL files for screwdrivers that have internal holes 10mm and 14mm in diameter. I haven't tested the 14mm size, but the 10mm works with my tools.

This is inspired heaviy by Anckero's design (and by his lack of a 10mm version :-) ) I'm starting to think that Thingiverse has so many files because it's sometimes easier to design a new thing than to wade through all of the existing designs :-).

BTW - The purpose of these silly things is so that you can colour code the different screwdrivers and also store some spare screws in the handle. I just couldn't bring myself to pay for a set when I ordered my screwdrivers.