The next generation wrecker 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 is a true demolition blade for the professional user. Optimized to be a true demolition blade for cutting nail embedded wood, plastics and metals Hardened teeth for increased life in nail embedded wood and thick metals 7/11 TPI for a wide material variety to be true demolition blades New blade profile with the ability to bend and maintain its shape Nail protecting feature built into the tooth design