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

6-Point design reduces risk of slippage and rounding off your fastener. Constructed of chrome vanadium steel and heat treated for strength and durability. Professional grade, high polish finish. Blue color stripe helps identify metric sockets. Size callout is hard stamped. Meets or exceeds ASME specifications. Hassle-free lifetime guarantee.