You are Buying Brand New And Factory Sealed DIABLO 9 in. 8/14 TPI Demo Demon Bi-Metal Reciprocating Saw Blades for General Purpose Cutting (15-Pack).... Diablos patented variable tooth technology provides faster cuts with less vibration. Up to 20% savings when purchasing this 15-piece pack. Perma-SHIELD coating protects the blade from heat, gumming and corrosion, 1 in. demolition body for straighter cuts with less vibration, ultra-hardened cutting edge for up to 5X longer life than standard blades. Unique plunge tip design that enables faster and easier plunging. Ideal for general purpose/nail-embedded wood and demolition-thick metal (1/8 in.-1/2 in. T ness) applications, 9 in. general purpose 8/14 TPI - 15-Pack....