Originally Posted by themadpatter

I have a sharpener for rotary blades, and its the bomb! I sharpen mine when they get dull/ skip, and they last longer that way. The blade that came with my KAI cutter has rust spots on the sides of the blade (!!!) but it *still* cuts better than the new ones from Wally World. I think it a tungsten steel blade, because it is really better than the usual ones.