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. Milwaukee® SAWZALL® The Wrecker™ Reciprocating Saw Blade, Demolition General Purpose Tapered Back, 6 in Length, 1 in Width, 0.062 in Thickness, 8 TPI, Matrix II Teeth, 1/2 in Tang, Universal/Toothed Edge Tang, Bi-Metal Cutting Edge, Bi-Metal Body, Bright, Applicable Materials: Wood with Nails, PVC and Plastic, Aluminum and other Non-Ferrous Metal