Hex bit to M8 screw

thingiverse

I had to drive in a bunch of M8 bolts, but my screwdriver didn't have an adapter. To solve this problem, I built one myself. Structural integrity is a major concern. Using the original design revealed two key issues: first, the circular socket was too large to fit into several of the spaces I needed it to reach; second, the axis of rotation was inconveniently offset. I made some adjustments to fix these problems.