I'd like to get an associated hex wrench that fits the larger hex bolts (chassis bolts, ball studs, etc) for the TC6. Can someone tell me the size of this wrench?

I think it is the 5/64" (blue handle) but I'm just not sure. I'd get the whole set, but $10 sounds better than $50! I've recently discovered that the allen wrenches included with the kit are pretty worthless.

Thanks again folks!