Linkage is hardened and 7/32???

[My427stang]

I am with you, I wish the linkage had a few additional holes and a standard size.

[disquek]

I'm trying to use the standard 1/4" joints. The linkage is drilled for a very odd size of 7/32 and hard as diamonds!?!

My cobalt drill bits wont scratch it. Neither will a mill file.

I can turn bushings to adapt everything to #10. But .... Why is it like this? What on earth is 7/32?

-Kyle