Milwaukee 1/2" Drive 17-mm Standard Socket w/FOUR FLAT™ Sides is designed for versatility. This socket features four parallel flat sides that help prevent rolling and provide wrench-ready capabilities for added convenience. It is clearly stamped with its size for quick and easy identification, making your work more efficient. The deep socket design includes optimized geometry to reduce bolt rounding and stripping, ensuring a secure fit and longer tool life. Model Number: 45-34-9118