Where can I get the "wrench" for the Zipp Vuka Clip?

I have the Zipp Vuka base bar and Vuka Clip. I lost the dang “wrench” tool that fits on the Vuka Clips to screw in the extensions. It does not appear to be a standard size for a “regular” wrench and I have already scratched them a bit with a vice grip (even with bar tape acting as “padding”).

I looked on Zipp’s website and cannot find the little tool.

Any ideas?

I just use my hand, it seems like it can get it tight enough where it doesnt move.

Zipp customer service is amazing, I would contact them directly.