【Cobalt Teeth】EZARC M42 Bi-Metal reciprocating saw blades feature 8% cobalt teeth with 2X longer life comparing with normal bi-metal blades without cobalt. 【Metal Master】Experience effortless cutting through sheet metal, pipes, and profiles with our metal cutting reciprocating saw blades, equipped with a durable cobalt edge for precision and efficiency. 【Optimized Design】Demolition reciprocating saw blades boast enhanced wear resistance and durability, optimized for heavy metal cutting tasks, delivering consistent, top-tier performance. 【Cutting Capacity】 Ideal for medium-thick sheet metals (3-8mm) and metal pipes/profiles (dia.<175mm), offering versatility and precision across various applications. 25-pack reciprocating blades metal set provides you with long-term work support. 【Universal shank】 1/2 inch shank fits all tools on the market including Bosch, Dewalt, Milwaukee Sawzall Saw, SKIL, Makita, Black & Decker, Ryobi, Porter Cable, Hitachi, Flex, Hilti, Metabo and more. Elevate your metal cutting experience with the EZARC 25-Pack Reciprocating Saw Blade set, your go-to solution for a seamless cutting journey. Crafted with precision and durability in mind, each 9-inch blade boasts a robust composition featuring 8% cobalt, engineered to enhance efficiency and longevity. Whether you're a professional or a dedicated DIY enthusiast, these bi-metal cobalt sabre saw blades offer unmatched performance – a true testament to quality for every metal cutting task.