DEWALT Bi-Metal Reciprocating Blades for cutting metal have an adjusted tooth setting for maximum durability and M2 HSS cutting edges for sharpness. Bi-metal construction, a combination of HCS and HSS for greater flexibility. A 25mm (1in) high blade body provides increased strength and durability. The universal shank fits all major brands including DeWalt, Bosch, Hitachi, Flex, Makita, Metabo and Skil.