DEWALT Fast Cut Demolition Reciprocating Blades have a plunge point tip for easy plunge cutting in all woods. Bi-metal construction, a combination of HCS and HSS for greater flexibility. Adjusted tooth setting for maximum durability and M2 HSS cutting edges for sharpness. The universal shank fits all major brands including DeWalt, Bosch, Hitachi, Flex, Makita, Metabo and Skil. Suitable for plasterboard, wood with nails, as well as demolition work.