The Makita A-94524 is a 5-3/8 50 Teeth Carbide-Tipped General Purpose Circular Saw Blade. The blade is used with BCS550 18-Volt 5-3/8 Metal Cutting Saw. The blade is specially designed for cordless saws to permit more cuts per charge. The Makita A-94524 is individually hand-hammered for guaranteed flatness and tension and designed for specific applications from fiber-cement siding to sheet metal.