8 pieces U shank jig saw  blade set.

DW3790 8 Pc. U-Shank Jig Saw Blade Set

With 8 durable blades to choose from, the DEWALT [Tool or Family Name] features the right blades for a number of demanding wood and metal-cutting applications. Each blade features precision-ground teeth that stay sharp and extra-deep gullets that quickly eject chips while you work. A U-shank design fits DEWALT and other universal shank jig saws.