A 1x2 Gridfinity holder for a Black and Decker 3V cordless screwdriver, and up to four extra bits.
The base was created using Grant L's excellent OnShape model, and the cutouts were my contribution.
Printed in PLA with a 0.6mm CHT nozzle, 0.4mm layer height. But I'm sure any typical settings would work equally well or better.
I printed it the right way up, but I think it would print fine upside down, because the hole for the tool is heavily filleted and I don't think supports would be required. The advantage of that is the bottom will be cleaner, and the top will be smoother.
The author remixed this model.