Comfy 1/4 Screwdriver Handle, Long and Stubby Variants

Generic ¼ Screwdriver holder. 

Designed to take any drive bit extension as its holder, just drive it in with a press or a hammer.
Used the prototype for a few months now in the workshop without any serious issues
Has a spinning palm cap for easier use, this needs a ball-spring grub screw for retention, I'l publish a simpler version soon.

There is a ¼ hex through the handle for using with an extension like a T handle, I wouldn't recommend it due to the printing tolerances but it might work out - this was designed initially to have a steel insert. This was originally developed as a project for work, but we moved in a different direction.

Update : Single Piece Handle uploaded, its slightly smaller and doesn't have the retention holes. It may need a little superglue on the extension for retention.

Originally developed as a project for work, but we moved in a different direction.