The Diablo 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 50 times longer cutting life than standard bi-metal blades in extreme thick metal cutting applications between 3/16 in. to 1/2 in. The increased blade body height produces straighter cuts with less vibration. Up to 10% savings when purchasing this 3-piece pack.