The Hikoki 751864 is a specialized impact socket designed for working with internal hexagonal bolts. It features an 8 mm hexagon bit tip and a 1/2" drive size, making it compatible with standard impact wrenches and drivers. Constructed from chrome molybdenum (CR-MO), this tool is built to withstand the high torque and vibrations associated with impact tools. Its length of approximately 76-78 mm provides a balanced reach, allowing you to access fasteners in various mechanical environments while maintaining stability during use.