I wanted a small driver for the flat leatherman bits that go with my multitool. Sometimes I don't have the multitool handy, but I carry the bits in my backpack.
The bit holder and collar are new pieces, but inspired from one of the remixes. The handle is slightly tweaked to fit the hex shaft.
I'm not sure the collar is necessary, but the theory from the original piece is to have two different layer orientations to guard against splitting along a layer line.
Shoutout to https://www.thingiverse.com/thing:1685254 for the nice bit enclosure!
You shouldn't need supports the way everything is oriented. I printed with 88% infill, mostly because at 100% mine printer over-extrudes some. It probably doesn't actually need that high of infill (and the handle definitely doesn't need as much infill as the driver and collar).
Slide the collar over the driver from the narrow end.
Push driver into handle. Secure with superglue if you need to.