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 blades.Straight cuts & increased durability: tall, thick blade profile provides straight cuts in heavy metal cutting applications and adds durability for tough demolition applications.Durable blade design: bi-metal construction delivers blade flexibility and a long-lasting cutting edge.Made in the USA with global materials**. ToughCase container made in China.