Curved profile optimizes the angle of attach for fast cutting and longer life cutting metal. High speed blasting strengthens the blade to reduce breaks and increase durability. Bi-Metal technology flexes to resist breaking and helps to extend blade life.
![Lenox T-Shank Power Arc® Metal Cutting Jig Saw Blades, 3-5/8" x 3/8" x .037", 18 TPI #1991599 (5/Pkg.) Lenox T-Shank Power Arc® Metal Cutting Jig Saw Blades, 3-5/8" x 3/8" x .037", 18 TPI #1991599 (5/Pkg.)](https://cdn11.bigcommerce.com/s-gdy1ehz/images/stencil/500x659/products/307946/440733/Untitled_design_30__98574.1664311998.jpg?c=2)