The Diablo DS0906VCWP 9″ 6 TPI Steel Demon Carbide Sawzall Reciprocating Saw Blade (2-Pack) 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” to 9/16”.