These blades are amazing. Never heard my planer so happy.

I have an old Foley Belsaw 910 with the saw attachment. These blades fit perfectly and cost less than the OEM version did 30 years ago. I made myself a blade installation tool. I took a 2" electrical PVC coupling (they are heavy walled). I split it in half lengthwise and drilled a hole in the center that fit my dial indicator (you could use about anything even a bolt). I bought a couple magnets from HomeDepot and installed them and the sides of the PVC coupling half with 5 minute epoxy. Just before the epoxy hardened I attached it to the blade arbor so the magnets would form to the curvature of the 3 1/4" round arbor. I left it until the glue hardened and it allowed me to perfectly install the blades at the correct height of 5/32" within a couple thousands of each other. After I built this I had all three knives perfectly aligned within 30 minutes. I didn't want to pay 80.00 plus for a store bought version.