Diablo Demo Demon reciprocating saw blades are specifically designed for maximum performance in nail-embedded wood 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. The Diablo Demo Demon™ Bi-Metal Reciprocating Blade are the most innovative blades on the market, delivering break-through 5x performance than standard blades. The unique feature combination of Ultra-Hardened Bi-Metal teeth, friction-reducing coating