Kobalt Standard (SAE) 3/8-in Drive 6-point 5/16-in Deep Socket

6-point design helps prevent slippage and rounded fasteners. Constructed of chrome vanadium steel and heat treated for strength and durability. Constructed of chrome vanadium steel for strength and durability. Professional grade high polish finish. Size callout is laser etched. Red color stripe helps identify SAE sockets. Meets or exceeds ASME specifications. Hassle-free lifetime guarantee.