DS1208CF3 Diablo 12 in Steel Demon Carbide-tipped Recip Blades for Thick Metal Cutting (3 pk) Thick metals (3/16 in to 1/2 in)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. High performance carbide for greater durability and cutting performance in thick metalEnhanced carbide tip to blade connection for extreme impact resistance1 in. oversized blade body for straighter cuts with less vibrationPerma-SHIELD non-stick coating for less heat and friction