The MILWAUKEE WRECKER SAWZALL Blade is designed for multi-material demolition cutting. This means it has the capability of cutting nail-embedded wood, plastics, and a variety of metals. This blade has 25% more high-speed steel for increased life and durability. With all of these features, the WRECKER is a true demolition blade for the professional user. The Milwaukee WRECKER with Carbide Teeth SAWZALL Blades are the most versatile carbide blade on the market. These multi-material SAWZALL blades offer up to 50X more life vs bi-metal reciprocating saw blades available today. The WRECKER Carbide SAWZALL blades offer a 7/11 TPI design, which allows for cutting into a wide variety of materials from clean wood to cast iron for quick demolition and remodeling work. Milwaukee Carbide Teeth products allow you to cut longer, cut more, and cut faster than other carbide-teeth blades on the market.