Kobalt Standard (SAE) 3/8-in Drive Spline 19/32-in Shallow Socket

This spline socket fits both 19/32-in and 15mm fasteners. Spline socket design allows work on multiple fastener types including SAE, metric, 6-point, 12-point, square, star and most rounded. Constructed of chrome vanadium steel and heat treated for strength and durability. Size callout is hard stamped. Meets or exceeds ASME specifications. Hassle-free lifetime guarantee.