Avanti PS0912AW10 9-Inch 6/12 TPI Bi-Metal Reciprocating Saw Blades for Wood with Nails, 10-Pack Up to 2X longer cutting life versus standard bi-metal blades Patented variable tooth technology provides faster cuts with less vibration Ideal for cutting wood with nails Exclusive plunge tip starts cutting faster than standard bi-metal blade Faster cutting speed than standard bi-metal blades