Milwaukee Tool - 4" Long x 3/4" Thick, Bi-Metal Reciprocating Saw Blade - Scroll Profile, Continuous Edge, Universal Shank

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.

Scroll-backed blades are used for cutting curved or circular shapes.

Continuous edge blades are made of an even strip of abrasive grains bonded to a steel backing. They are used for cutting titanium, graphite, fiberglass and other hard-to-cut materials.