New Demo Demon Carbide pruning and fast clean wood blades feature an aggressive carbide tooth geometry for an unmatched 50 times longer cutting life， faster cuts and increased productivity in pruning and clean wood cutting applications. These industry first carbide blades are designed with large gullets and a strengthened， oversized blade body for fast chip removal in extreme cutting applications. In addition， these radical blades feature Perma-Shield non-stick coating to prevent gumming and friction for fast， effortless cuts in some of the toughest wood cutting scenarios.