These Bi-Metal blades are a complete waste of money. The so-called "industrial grade" blades couldn't even make it through 10 cuts before going dull. The only pro is that they fit the saw easily. The big con is that the blades were almost useless and didn't cut through material effectively. Save yourself the headache and invest in a higher-quality blade. These belong in the trash, not in the industrial and scientific cutting tools category.