Steel Demon™ Carbide Teeth Reciprocating Saw Blades for Thick Metal are the first carbide-tipped blades designed for extreme metal cutting; including high strength alloys, cast iron, and stainless steel. High performance TiCo Hi-Density carbide blades deliver an unmatched 50X longer cutting life compared to standard bi-metal blades in extreme thick metal cutting applications between 3/16” to 9/16”.