Kobalt Universal 5/16-in Spline Standard (SAE) Standard Combination Wrench

Dedicated SAE spline broach in box end of wrench. Specialized box end design allows work on multiple fastener types including 6-point, 12-point, spline, square, star and some rounded. Constructed of chrome vanadium steel and heat treated for strength and durability. Natural surface grind finish with a matte black finish that allows you to easily identify the tools in your tool box. Size callout is hard stamped. Meets or exceeds ASME specifications. Hassle-free lifetime guarantee.