Kobalt Metric 1/4-in Drive 6-point 5.5mm Deep Socket

6-Point socket design helps reduce risk of slippage and rounding your fastener. 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 specifications. Hassle-free lifetime guarantee.