This ¼" (6.4 mm) drive petcock socket set provides the specific tools required to service drain fittings on radiators, engine blocks, and storage tanks. It includes a steel universal socket with an integrated O-ring to hold a 7/8" (22.2 mm) wrench in place for manual use, as well as a molded plastic socket for narrow wing plastic fittings.

This ¼" (6.4 mm) drive petcock socket set provides the specific tools required to service drain fittings on radiators, engine blocks, and storage tanks. It includes a steel universal socket with an integrated O-ring to hold a 7/8" (22.2 mm) wrench in place for manual use, as well as a molded plastic socket for narrow wing plastic fittings.