Utilizing Surface Drive® technology to reduce fastener rounding, this ¼" (6.4 mm) drive 5.5 mm metric socket grips the flats of fasteners for increased torque. A knurled ring and hard-stamped markings allow for rapid identification, while the chamfered opening guides the socket into position. The full polish chrome finish resists corrosion and meets ASME B107.5 m standards.

Utilizing Surface Drive® technology to reduce fastener rounding, this ¼" (6.4 mm) drive 5.5 mm metric socket grips the flats of fasteners for increased torque. A knurled ring and hard-stamped markings allow for rapid identification, while the chamfered opening guides the socket into position. The full polish chrome finish resists corrosion and meets ASME B107.5 m standards.