Bi-metal blades bend and resist breaking and extend blade life. High speed steel teeth provide a strong, long lasting cutting edge.
![Lenox Bi-Metal Air Jig Saw Blades, 4" x 1/2" x .025", 24-TPI #20424B424T (25/Pkg.) Lenox Bi-Metal Air Jig Saw Blades, 4" x 1/2" x .025", 24-TPI #20424B424T (25/Pkg.)](https://cdn11.bigcommerce.com/s-gdy1ehz/images/stencil/500x659/products/139346/302890/Air-Saw-Blade__22202.1445962247.1280.1280__95410.1585269979.jpg?c=2)
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Bi-metal blades bend and resist breaking and extend blade life. High speed steel teeth provide a strong, long lasting cutting edge.