DEWALT DW3798 15 Piece U-Shank Jig Saw Blade Set U-shank fits DEWALT and other universal shank jig saws 3" and 4" lengths Contains 3 Each, Nos. 5NF40, 5NF43, 5NF48, 5NF54, & 4KX74 U-shank fits DEWALT and other universal shank jig saws