DEWALT Portable Band Saw Blade, 44-7/8-Inch, .020-Inch, 18 TPI, 3-Pack (DW3983) Product Description Packed with a Matrix II High-Speed Steel Edge, 8% cobalt content, and Rc 65-67 tooth hardness, DEWALT Bi-Metal Portable Bandsaw Blades can stand up to extreme heat and wear. An alloy steel backer resists fatigue. -- The DeWalt .020-by-44-7/8-Inch 18 TPI Portable Band Saw Blade maximize the performance of your portable band saw. This blade is constructed with a Matrix II high speed steel edge and an alloy steel backer for heat and wear resistance. With a Rc 65-67 tooth hardness and an 8 percent cobalt content, these blades are manufactured to provide high performance on the jobsite. All the blades are 44-7/8 inches long and 1/2-inch in width. From the Manufacturer DeWalt DW3983 .020-by-44-7/8-Inch 18 TPI Portable Band Saw Blade Features Matrix II high speed steel edge of the band saw blade is designed for heat and wear resistance 8% Cobalt Content For Added Durability Wear Rc 65-67 Tooth Hardness For Increased Wear Resistance Alloy Steel Backer for Fatigue Resistance 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.