OTC 9850 6-Point Truck Wheel Bearing Locknut Display with Sockets.  Each of these sockets has 3/4″ square drive opening, permitting the use of an extension and torque wrench to tighten the lock-nut as required.  Lock-nut removal and installation is simple, even when wide-rim wheels are involved, since a long extension may be attached to the socket to provide the necessary clearance. Sockets are made of high-strength steel; openings resist “round-out”. 6-Pt Locknut sizes included: 2-3/32″, 2-3/8″, 2-9/16″, 3″, 3-1/4″, 3-1/2″, 3-7/8″, 4″, 4-1/8″, 4-3/8″, 4-7/8″, 2-1/4″, 2-1/2″, 2-5/8″, 2-3/4″, 3-3/4″, 2- 9/16″ Rounded, 2-7/8″, 3-1/8″, 2-3/8″ Rounded, 5-1/4″.