Diablo's Steel Demon 6 in. Carbide Tipped Blades for Thin Metal Conduit, Medium Metal (1/16 in. to 5/16 in.) and Thick Metal (3/16 in. to 9/16 in.) include exclusive features that deliver an unmatched up to 50X L life than standard bi-metal blades. The Carbide Thin Metal Conduit feature an optimized tooth count that effortlessly rips through thin metals with ease, producing clean cuts that require virtually no rework. The carbide Medium Metal Blades ’ 10 TPI provides cleaner/smoother cuts in metal, while the increased blade body height produces straighter cuts with less vibration. The Carbide Thick Metal Blades are designed for extreme metal cutting, including high strength alloys, cast iron and stainless steel. All blades feature Perma-Shield non-stick coating for less gumming and friction.