Milwaukee 1/2" Drive 16-mm Standard Socket w/FOUR FLAT™ Sides is designed for versatility. It features four parallel flat sides that help prevent rolling and provide wrench-ready capabilities for added convenience. The socket is clearly stamped with its size, allowing for quick and easy identification. This deep socket is engineered with optimized geometry to reduce bolt rounding and stripping, ensuring a secure and reliable fit every time. Model Number: 45-34-9117