Kobalt Universal Standard (SAE) 3/8-in Drive 12-point 3/8-in Deep Socket

Dedicated SAE spline broach drive. Specialized socket design allows work on multiple types of fasteners including 6-point, 12-point, square, star, spline and most 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 laser etched. Meets or exceeds ASME specifications. Hassle-free lifetime guarantee.