Long Handle for Screwdriver Bits

This is a long handle for 1/4" screwdriver bits. I made it to use when tightening electronics screws but it works great for just about anything.

Most of the handles I could find are short and wide and they don't feel right in my hand so I made this one. The handle is long enough to give plenty of grip and positions and the diameter is right around an inch. This sizing feels right to my hand and it's not fiddly to use when running in delicate screws.

I've designed the inside of the screwdriver, the part that holds the bit, with a conical upper surface so that you can fit double-ended bits inside.

UPDATE: I've added a second file with V3 of the screwdriver handle. I made changes to the shape of the handle as well as added an indention to the top to allow it to pivot in my fingers. I am leaving the original file, too, in case you prefer that one.