Features and Benefits:�Ordinary teeth deliver either speed or durability NAIL GUARD™ solves this trade-off with an aggressive 5 TPI pattern for faster cuts and a unique design that protects against tooth fracture�A thicker, more rigid blade body resists fracturing and bending for maximum durability�FANG TIP ™�Matrix II bi-metal teeth for greater durability�NAIL GUARD ™�Ordinary tips bounce or skate on the work piece FANG TIP ™ bites into the wood on first contact�The 1" tall blade body reduces blade twisting for straighter, more accurate cuts�FANG TIP ™�NAIL GUARD ™The Ax™ SAWZALL® blades have been engineered to deliver the fastest cuts, longest life, greatest tooth durability and quickest plunge cuts of any wood demolition blade on the market.