Grizzly has 2 spiral cutterheads to fit a 12" jointer but cannot provide dimensions for me to determine if I can make it fit my machine. I am looking for anyone willing to get major dimensions from the cutterhead in the following machines: Grizzly G0609, G0609X, Jet JJ-12, Oliver 4255, Powermatic P1285, Shop Fox W1744, W1744S, Yorkcraft YC-12J. If I can make the Grizzly work, it would cost about half the cost of a custom Byrd head. Thank you.