For some reason, Van’s sells firewall fittings that don’t fit the control cables they sell. WTF? Many builders buy them from Van’s and then attempt to drill them out to the right size.
Why Van’s doesn’t choose to sell the right parts for their control cables, I don’t know, but you can buy the right sized fittings directly from the manufacturer at Doubletee Products. In fact, call them and just tell them you need fittings for the cables that Van’s sells. They will make them to spec and ship them directly to you.
This just doesn’t have to be that difficult!