With wolf-like endurance and long-lasting strength you can depend on, you can put this 2 PK 9 in. 14 TPI METALWOLF .035 in. Thick WAVE EDGE Bi-Metal Reciprocating Saw Blade to work in a wide variety of daily metal-cutting applications. With up to 50% longer life, its designed to maintain cut consistency with innovative WAVE EDGE technology. The saw blade features a strong steel backing to help reduce breakage along with a high-speed edge for fast and efficient cutting.