【Long-Life Teeth】 Teeth made of bI-metal with 8% Cobalt which makes EZARC reciprocating saw blades with 2times longer life comparing with normal bi-metal blades without cobalt. 【T2X Technology】 Combine aggressive teeth and ridged teeth with optimized tooth geometry providing longer life and faster cutting speed than other standard bi-metal blades. 【Powerful Demolition】 Thicker and wider blade profile prevents bending during cutting and provides maximum control in any tough demolition jobs. 【Cutting Capacity】 Ideal for use with demolition of metal, wood, plastic, drywall, chipboard and glass fiber-reinforced plastics. 【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.