1/4" screwdriver handle and 4mm adapter
thingiverse
This is my first upload, hope someone finds it useful :) I lost the handle for my 4mm bit set, couldn't find a 1/4" to 4mm driver bit adapter so I modelled one. Then decided to do a handle as well. Print both vertical, no support, raft or brim. I printed these with typical PLA settings and 25% hex infill on the handle, 100% on the adapter (it's so small it will prob print solid whatever setting you use). The handle varies between a tight and very tight fit on the 1/4" bit extenders I have, I wanted it that way so they don't fall out. If you're struggling either sand your extenders down a little or try scaling the STL in your slicer. If you're really struggling let me know and I'll do a couple of remixes.
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