Engineered for precision and efficiency, this 9/16" x 3/4" RotaLocâ„¢ Annular Cutter from Hougen is crafted from M42 high-speed steel, ensuring rapid hole creation in various metal types. Designed specifically for compatibility with Hougen's HMD130 and HMD115 magnetic drills, this cutter features a tool-less shank that allows for swift size changes, enhancing productivity on the job. Its innovative stack-cut geometry enables it to effortlessly cut through multiple layers of steel simultaneously, making it an indispensable tool for any metalworking project. For optimal performance, this cutter requires a pilot bit, ensuring that you achieve clean and accurate results every time. Proudly made in the USA, it exemplifies quality and durability in hole-cutting tools.