Our 13-Piece Bi-Metal SAWZALL Reciprocating Saw Blade Set + 12 free Bi-Metal blades is designed for a broad range of professional applications, including general use and demolition. The AX wood cutting saw blades are equipped with Fang Tip and Nail Guard technology to extend blade life and increase durability in nail-embedded wood. 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. This MILWAUKEE SAWZALL blade set also includes a jobsite case for convenient saw blade storage.