GeoPeg posted:Dennis Holler posted:Looks like the start of some fun. Interesting cross shaped fastener holding the drive rod to the rear drive wheel - what is that called? And what tool is needed to tighten/loosen without damage?
George
These types of heads are called "Line drive" or "cross drive" or "cross spanner" these days. There is a spanner bit made that -with some grinding- can be made to work... start with a #14 spanner bit.