Irwin Marathon 4 in. Carbon Steel U-Shank Jig Saw Blade 10 TPI 2 pk By August 9, 2026 No Comments Product Type: Jig Saw Blade. Paint And Paint Supplies. Shank Type: U-Shank. Material: Carbon Steel. Tooth Design: Fleam Ground. Because of that, we are unable to cancel an order once it has been submitted. Continue Reading