I tried two different carbide blades, maybe not a Lennox. I bought a Laguna and it broke at the weld. Sucks on a $150 blade. I was trying to use 3/4" blades because I thought they would cut straighter. I don't think I could get enough tension on them with my small 14" Rikon. I found the wood slicer 1/2" and they are reasonable and last me a long time.