The next generation Wrecker(TM) is designed for multi-material demolition cutting. This mean it has the capability of cutting nail embedded wood, plastics and a variety of metals. This blade has 25% more high speed steel for increase life and durability. With all of these features, the next generation Wrecker(TM) is a true demolition blade for the professional user. | Milwaukee Tool The WRECKER Multi-Material SAWZALL Blade 9" 7/11TPI 5 pack