I was trying to get a screw in with limited clearance using a pair of pliers and a hex driver bit. Thinking there is a better way, I came up with this. It allows a hex drive screwdriver bit to be used with a minimum clearance but still allowing a fair bit of torque to be applied.
Update: As requested I've also made a smaller version for mini 4mm bits
Designed in Fusion 360. Thanks to the following YouTube video for helping with getting the knurling done.
The author marked this model as their own original creation. Imported from Thingiverse.