Milwaukee 1/2" Drive 16-mm Deep Socket w/FOUR FLAT™ Sides is designed for versatility. This deep socket features four parallel flat sides that help prevent rolling and provide wrench-ready capabilities, making it easier to handle and use. The socket is clearly stamped with its size for quick and easy identification, saving you time on the job. Its optimized geometry helps reduce bolt rounding and stripping, ensuring a secure fit and long-lasting performance. Model Number: 45-34-9140