Pack of 25 LENOX(r) MetalWolf Wave Edge Reciprocating Saw Blades 152 x 19 x 0.9mm 14 TPI. Application: Thick Metal. The LENOX(r) MetalWolf Wave Edge Reciprocating Saw Blades have been designed for repetitive, everyday use with metals, these saw blades deliver up to 50% longer life (vs. prior LENOX(r) generation) thanks to WAVE EDGE technology which is designed to improve longevity. The high-speed edge helps you get the most out of your reciprocating saw while the steel backing assists in reducing breakage when cutting metal. Patented T2 technology optimises chip removal for an efficient cut in a wide range of materials.