Diablo DS1214BGP5 Reciprocating Saw Blade, 8/14 TPI, Bi-Metal | Diablo's reciprocating saw blades are specifically designed for maximum performance in general-purpose (nail-embedded wood and metal) applications. These high-performance blades feature bi-metal technology that delivers Up to five times longer life of standard blades on the market. Diablo's patented variable tooth technology provides faster cuts with less vibration.