Milwaukee 3/8" Drive 11/16" Deep Socket w/FOUR FLAT™ Sides is designed for versatility. It features four parallel flat sides that help prevent rolling and provide wrench-ready capabilities, making your work more efficient. The socket is clearly stamped with its size for quick and easy identification. Additionally, this deep socket is engineered with optimized geometry to reduce bolt rounding and stripping, ensuring a secure fit and longer tool life. Model Number: 45-34-6875