IRWIN Tools 372945F Reciprocating Saw Blade, Wood- and Metal-Cutting, 9-inch Electronic beam weld for stronger, longer lasting teeth. 8% cobalt keeps teeth sharp longer. Bi-metal construction for faster cutting and added durability. Precision-set teeth for faster, smoother cuts. Cuts all metals, including non-ferrous pipe conduit, stainless and sheet metals. Use with materials 1/8- to 1/2-inch thick. (3.2 to 13 mm) to