DEWALT Bi-Metal Reciprocating Blade for Metal 203mm x 18 TPI (Pack 5)DEWALT Bi Metal Reciprocating Blades for extreme applications, as well as demolition work. They have a bi metal construction, combining HCS and HSS for increased flexibility and durability. Aggressive tooth geometry with a special angle for a fast and effective removal of material, especially for tensile and abrasive metals. Universal shank fits all major brands including DeWalt, Bosch, Hitachi, Flex, Makita, Metabo, Skil. These DEWALT Bi Metal