DEWALT Reciprocating Saw Blades, Straight Back, 6-Inch, 14 TPI, 5-Pack (DW4808) Product Description Lasting up to 50% longer*, these Metal-Cutting Reciprocating Saw Blades feature a patented toothform that delivers fast, smooth cuts for a range of metal cutting applications. Their Bi-Metal construction is designed to extend blade life and minimize blade breaks. From the Manufacturer DEWALT DW4808 6-Inch 14 TPI Straight Back Bi-Metal Reciprocating Saw Blade, Heavy Gauge Metal, 5-Pack Features UP TO 50% LONGER LIFE*: Patented toothforms optimize chip removal for efficient cutting and long life. *Average performance of DEWALT reciprocating saw blade range vs. prior generation DEWALT blades DURABLE BLADE DESIGN: Bi-metal construction delivers blade flexibility and a long-lasting cutting edge MADE IN THE U.S.A. WITH GLOBAL MATERIALS Patented tooth design utilizes sharper tooth geometry for faster cut rates Aggressive shank angle increases tooth contact, maintaining cutting speed as blade wears for longer blade life Specially formulated anti-stick coating minimizes friction and gum-up for smoother cuts 1/2-Inch Diameter USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.