I use a carbide toothed blade on my saw at work, But I am cutting hard bronze and it only comes in a 3 tpi arrangement. So it does not work well for thin metal unless you use an extremely slow feed rate. It also does not come in any less width than 1/2 inch. So short turns are no good. Have you tried any of the tungsten abrasive blades. I think you will have a hard time finding a saw blade that will cut saw blade material and hold up for long. What you might try doing is contacting Starrett or some other manufacturer and checking with their technical dept.