4mm hex bit driver handle

thingiverse

This is a grip that holds 4mm hex bits with more traction and rotational force. The shape is your standard straightforward hexagonal screwdriver handle design. I adore my bit driver kit from ifixit; it has a multitude of unusual types and I've had it for over five years, and they have proven to be sturdy and robust. My only complaint about the kit is that it's great for precise work, but for more demanding applications, the provided driver proves slippery and unable to provide sufficient torque. The kit comes with an adapter that is the basis of my design. It's a very snug fit, so that the adapter doesn't come loose. I've added space in the handle to fit a small neodymium magnet (mine is 6.3mm diameter and 1.5mm tall), in case the handle wears out a bit and the adapter starts to slip. In order to install it you will have to pause the print at about 25.5mm.