Features and Benefits:�Advanced Tooth Geometry cuts, cleans, and clears the material while drilling�Cannot be resharpened�Convenient case for jobsite storage�Faster Holes: Thin-Wall Construction removes less material�For use in Hard Metal applications�Includes 4-pieces�Longer Life: Advanced Tooth Geometry engages 50% of teeth into cutting, and 50% into cleaning, extending life of the cutter�Made in China�Thin-Wall Design efficiently removes material for increased hole speed�Use with Pins: 49-59-0013 & 49-59-0015Milwaukee tungsten Carbide tipped annular cutters offer an advanced tooth geometry that cuts, cleans, and clears while drilling, leading to faster holes and longer life. The cutters displace less material for the same size hole as the competition, giving you fast, burr-free holes in hard metal materials including stainless steel and cast iron. All Milwaukee tungsten Carbide tipped annular cutters have a 3/4 in. Weldon shank for use with most small magnetic drill presses and large magnetic drill presses with the correct arbor.