Diablo’s reciprocating saw blades are specifically designed for maximum performance in general-purpose, wood with nails and metal applications. These high-performance blades feature bi-metal technology that delivers up to 5X longer life of standard blades on the market. Diablo’s patented variable tooth technology provides faster cuts with less vibration.Perma-SHIELD coating protects the blade from heat, gumming and corrosion1 in demolition body for straighter cuts with less vibrationUltra hardened cutting edge for up to 5X longer life than standard bladesA one of a kind tip design that enables faster and easier plunging