UP TO 50% LONGER LIFE*: Patented tooth forms optimize chip removal for efficient cutting and long life. *Average performance of DEWALT reciprocating saw blade range vs. prior generation DEWALT bladesSTRAIGHT CUTS & INCREASED DURABILITY: Tall, thick blade profile provides straight cuts in heavy metal cutting applications and adds durability for tough demolition applicationsDURABLE BLADE DESIGN: Bi-metal construction delivers blade flexibility and a long-lasting cutting edgeMADE IN THE USA WITH GLOBAL MATERIALS**. ToughCase Container made in China