Cam shaft turning tool
This has been mentioned in other sections of the board, but this new forum is a good place to share things that make life easier.
The handle says adjust pin wrench10-30 mm. I bought it at Harbor freight. It's intended use is the installation and removal of grinder wheels. It's adjustable, and the pins fit into the holes of Alfa cam sprockets. A lot better than turning them with vese grips, or channel locks.