Diablo's new 5-piece carbide reciprocating blade set consists of three Demo Demon blades for nail-embedded wood and 2-steel Demon blades for metal cutting, including high-strength alloys, cast iron and stainless steel, this combination carbide reciprocating blade set allows pros to blaze through nail-embedded wood with amazing ease to facilitate fast teardowns of walls and framing materials and slice through metal so you can quickly dismantle a variety of pipes, bars and beams up to 1/2 in thick, Diablo's high-performance carbide set delivers unmatched 50X longer cutting life than standard bi-metal blades, greater durability in cutting applications and an oversized body height for straighter cuts with less vibration.