[kbrowncny]

Be careful when you buy hex stock from McMaster Carr though, You want to get slip fit stock (like what you find from Vex Pro). The raw stock that you buy on McMaster is not a slip on tolerance, and will not fit well with your Vex couplings, spacers, and collars. The Vex hex stock our team has purchased is extruded and seems to arrive slightly bent. We will be looking at other options in the future.