Kobalt Metric 1/2-in Drive 12-point 18mm Deep Socket

12-point socket design allows work on multiple fastener types including 6-point, 12-point, square, star and some rounded. Constructed of chrome vanadium steel and heat treated for strength and durability. Professional grade, high polish finish. Size callout is laser etched. Blue color stripe helps identify metric sockets. Meets or exceeds ASME standards. Hassle-free lifetime guarantee.