Nail guard to protect teeth from fractures, Fang tip bites into the wood on first contact for plunge cuts, Optimized tooth design providing longer life than standard bi-metal blades, Sawzall blades tough neck ribs strengthen the blade tang and minimize breakage, 1/2 in. universal tang, Durable jobsite storage case holds up to 9 in. blades, Includes: (3) 6-Inch 24TPI Metal Blades, (6) 6-Inch 18TPI Metal Blades, (3) 6-Inch 14TPI Metal Blades, (2) 6-Inch 5TPI AX Wood with Nails Blades, (1) 9-Inch 5TPI AX Wood with Nails Blade, and (1) 9-Inch 18TPI Metal Blades.