Diablo’s Steel and Demo 9 in. Carbide Tipped Blades for Pruning and Clean Wood, General Purpose cutting, Nail-Embedded Wood, 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 Pruning and Clean Wood blades are designed with large gullets and a strengthened, oversized blade body for fast chip removal in extreme cutting applications. The Carbide General Purpose blades are ideal for cutting nail-embedded wood and ferrous metal applications with a thickness of 3/32 in. to 1/4 in. The carbide Nail-Embedded Wood blades with new Variable Tooth Design are specifically designed for maximum performance in nail-embedded wood. 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.