Features and Benefits: ?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 ?Nail protecting feature built into the tooth design ?New blade profile with the ability to bend and maintain its shape ?Aggressive tooth and blade design for increased speed in woods and metals ?Blade profile optimized for fast plunging ?Hardened teeh for increased life in nail embedded wood and thick metals ?Optimized to be a true demolition blade for cutting nail enbedded wood, plastics, and metals 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.