Diablo's reciprocating saw blades are specifically designed for maximum performance in nail-embedded wood and metal cutting/demolition applications. These high performance blades feature bi-metal technology that delivers up to four times longer life of standard blades on the market. Diablo’s Demo Demon blades feature patented variable tooth technology that provides faster cuts with less vibration. Diablo's Steel Demon blades feature a double tooth configuration with small gullets for faster material removal and extra durability. Carbide Tooth blades are the only blades of their kind, able to easily cut through metal and metal embedded wood for extended amounts of time.