Features and Benefits: 3-1/2" 6-point locknut socket; 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 required; Designed for use with 3/4 In. square-drive manual tools only; impact tool use voids socket s warranty; Not included Related Product: OTC1910 is included in OTC9850 6-pt Wheel Bearing Locknut Sockets with Tool Board; Not included Related Product: OTC1910 is included in OTC9852 Wheel Bearing Locknut Sockets / board; Made in the USA; Lifetime Warranty;