Whether you're making straight or curved cuts, DEWALT T-shank jigsaw blades will help you get the job done quickly and accurately. They're constructed out of cobalt steel and feature a precision cut design that help the teeth stay sharper longer, reducing your downtime and helping you finish the job quicker. They also have deep gullets that quickly expel chips, which frees up space to help make for quicker cutting. | DEWALT 3" 18 TPI T-Shank Metal Cutting Cobalt Steel Jig Saw Blade DW3774-5 5 Pack