Lenox tuff tooth reciprocating saw blade features high quality bi-metal construction for added durability. It features 18 TPI and reinforced geometrical design for clean cutting. Blade is 0.035 inch thick and measures 4 inch x 3/4 inch. It has T2 technology tooth design to minimize friction and heat build-up during variety of metal cutting actions. Blade is ideal for cutting thin, medium and non-ferrous metals.