【Cobalt Teeth】 M42 with cobalt teeth makes the blade resist high temperatures on heavy metal cutting demolition works. 【Metal Master】 Hard cobalt edge provide effortless cutting into sheet metal, metal pipe and profile. 【Optimized Design】 Enhanced version of the blade is more wear-resistant for cutting heavy metals show better performance. 【Cutting Range】 Medium-thick sheet metals (3 to 10mm), metal pipes/profiles (dia.<175mm) 【Universal shank】 1/2 inch shank fits all Sawzall tools on the market including Bosch, Dewalt, Milwaukee Sawzall Saw, SKIL, Makita, Black & Decker, Ryobi, Porter Cable, Hitachi, Flex, Hilti, Metabo and more.