Item #: 47745179Brand: LenoxModel #: 1991404 Features and Benefits Bi-metal blades feature a toothed edge made from high speed steel (HSS) attached to a flexible steel backing through an electron-beam welding process. This configuration results in a blade that makes precise cuts while resisting breakage. They are used on ferrous and nonferrous metals. U-Shanks or universal shank blades are reversible and can be used horizontally for fast and smooth cutting. They are constructed with a U-shaped design. The cutting surface of a toothed edge is composed of a row of pointed teeth. Common tooth variations include the number of teeth per inch and pitch pattern. Product Specifications Jig Saw Blades; Blade Material: Bi-Metal ; Blade Length (Inch): 3-1/2 ; Blade Thickness (Decimal Inch): 0.0580 ; Shank Type: U-Shank ; Blade Width (Inch): 7/32 ; Cutting Edge Style: Toothed Edge Blade Material Bi-Metal Blade Length (Inch) 3-1/2 Blade Thickness (Decimal Inch) 0.0580 Shank Type U-Shank Blade Width (Inch) 7/32 Cutting Edge Style Toothed Edge Teeth Per Inch 10 Contour Cutting No Tooth Set Ground