OEM Truck Wheel Bearing Locknut Socket 2-5/8-Inch, 6 point design. Each locknut has a 3/4-Inch square drive opening to be used with a hand ratchet or bar and extension torque wrench. A long extension may be used to provide necessary clearance when wide-rim wheels are involved, making removal and installation easy in all applications. Sockets are constructed with high-grade steel for added strength. Designed for professional auto mechanics and heavy duty applications.