OTC1914 Features: -Wheel bearing locknuts are easy to remove or install with these specially designed sockets. -Sockets are made of high-strength steel; openings resist '' rounding out''. -Can be used with an extension and torque wrench to tighten the locknut as requiredThis socket has a square drive opening, permitting the use of an extension and torque wrench to tighten the locknut as required.  Locknut 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.. -Drive: 0.75''. Generic Specifications: -6 Point Wheel Bearing Locknut Socket. Generic Dimensions: -Overall dimensions: 3.4'' H x 4.4'' W x 4.8'' D, 3.2 lbs. Dimensions: Overall Height - Top to Bottom: -3.4 Inches. Overall Width - Side to Side: -4.4 Inches. Overall Depth - Front to Back: -4.8 Inches. Overall Product Weight: -3.2 Pounds.