ZIS 150 Complete Kit

[sassgrunt]

Yes, it is a Wiha. I don't know why it rounded off inside from over-torqueing instead of the head of the bolt, but it did. All I could think of is that metal of the tip is SO tapered, it must be thin enough to spread somewhat, (because it isn't split, like I figured it would be). After that happened, I bought a second one, and try not to overstress it. But, the fact that it did round out is the reason I bought the thicker, but more awkward ones.