Diablo's Steel Demon Carbide-tipped reciprocating blades are the first carbide-tipped blades designed for extreme metal cutting, including high strength alloys, cast iron and stainless steel. This high performance carbide-tipped blade delivers unmatched 50X longer cutting life than standard bi-metal blades in extreme, thick metal cutting applications between 1/16 in. to 1/8 in. The blade's increased body height produces straighter cuts with less vibration. High performance carbide for greater durability and 50x cutting performance in medium metal applications.Enhanced carbide to blade connection for extreme impact resistance.10 TPI tooth geometry for clean/smooth finishes on medium metal applications.1 in. oversized blade body for straighter cuts with less vibration.Perma-shield non-stick coating for less heat and friction.