Hex drivers: regular vs. ball-tip

[simplechamp]

I do have both, one end of my Bondhus L-keys is regular tip. I still haven't ever stripped a screw with the ball-tip, and I've reefed pretty hard on them, even using a "helper" bar to the point where you can tell the hex is starting to flex/twist a tiny bit and I stop. I think the small sizes like 1.5mm and 0.050" are the most at risk for a ball-tip to cause issues. A lot has to do with the quality of the hardware and the tool also. Bondhus makes tough stuff.