Since I've been doing some cam measurements over the last few days, I happened to have this tool out on the bench. I've used it for several years instead of the factory tool. It fits better and is more open for better visual and physical access to the cam. It was made from a Snap-On crow-foot, size 1 13/16. Very close to 46 mm. I had a friend to weld in the piece that bridges the gap in the crows foot to keep it from spreading open on those really tight cam nuts. I have no idea what the Snap-on tool cost, that was a while back. But I wanted something to last. The part that protrudes to hold the 1/2 ratchet or breaker bar just clears the inside of the chain case.
Here is a photo of the tool in use.
