Our non ferrous metal blades have been designed with precision ground micro grain tungsten carbide tips and a triple chip tooth configuration. The specially formulated carbide lasts longer and leaves clean, burr free cuts in all types of non ferrous metals such as aluminum, copper, brass, bronze and even some plastics. WARNING: Never attempt to cut ferrous metals with these blades. It is recommended that you use a coolant when cutting non ferrous metals. Proper clamping devices should be employed.