Aluminium Degree Wheel
Summit® cam degree wheels are precision-degreed with a tough polyurethane enamel to give you years of accurate calibrations. They're designed to read the same as cam specification cards, and you can use them to measure cam centerline, valve timing, TDC, BDC, and more.
Degree wheel has 1.00 in. diameter center hole to accommodate aftermarket crankshaft sockets.