【Cobalt Teeth】 BI-Metal with 8% Cobalt teeth make our reciprocating saw blade extremely hard comparing with normal bi-metal blade, effectively longer lifetime for tough demolition works. 【Optimized Design】 10/14 TPI vario tooth is optimized for efficient cutting on wood with nails, the best balance of cutting speed and long lifetime. 【Flexibilty Blade】 1.1mm thickness makes this reciprocating saw blade flexible enough for flush cuts and corner chamfer cuts on wooden pallets. 【Cutting Capacity】 Blades cut through nail-embedded wood, chipboard, cable, glass fiber reinforced plastics, composite material. 【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.