My usual knife is over. This has happened to me before and I've since bought Timberwolf blades. They're good, but they don't last as long as my regular blades and they cost $10 more. This time I bought two of these Junior Olson models. They are both ticking monsters. Cannot be fixed with a stone on the back. They really clog the rear roller. It takes WAY too much sanding to remove the roughness of the cuts on the pieces of wood. If automation is used in the welding and grinding of these things, I don't know how they can be so sloppily handled on the back of a weld. I think I really need a better stock of higher quality blades. I would only use these budget blades for rare draft projects.