

I’ve done it. It was a grub screw - so the hex was entirely within the shaft - that was surrounded by loctite, and frankly I never had a chance to get it out. It went circular immediately, just with hand pressure. I ended up having to use a screw extractor.
I was told this was a common problem on ARRMA vehicles and that I should get a more precise type of hex driver. They were expensive but I haven’t had the problem since.
Also though these are RC size, 5mm screws, so much easier to kill. Apparently the issue is most hex drivers are slightly undersized, and ARRMA like to loctite their axle grub screws to hell.