The MILWAUKEE 16 piece SAWZALL reciprocating saw blade set features an assortment of metal cutting SAWZALL blades for a broad range of professional applications. The TORCH demolition metal cutting blades provide 5X blade life and facilitate tough cuts. They also feature GRID IRON technology for increased blade stiffness. The metal cutting blades feature TOUGH NECK ribs that strengthen the blade tang and minimize breakage. The recip saw blades in the set are ideal for a variety of professional applications including general use and demolition. The TORCH with NITRUS CARBIDE SAWZALL Blade for Cast Iron and other thick metals delivers the fastest cutting, and longest life with a breakthrough Carbide Technology. Our NITRUS CARBIDE reciprocating saw blades are engineered to dissipate heat better than any other demolition blade for faster cutting. The TORCH with NITRUS CARBIDE for Cast Iron delivers 5x life versus carbide teeth blades in cast iron. This 8TPI blade is ideal for the fastest, smoothest cuts in hard cast iron, stainless steel, black pipe, rebar, & angle iron.