Proto J4772A 1/4'' Drive Universal 6-Point Joint Socket, 5/16''

The Proto J4772A Universal Joint Socket (1/4-inch square drive, 5/16-inch size) is a standard flex 6-point socket, made of alloy steel with a corrosion-resistant chrome finish. It is ideal for use on stubborn or damaged fasteners and also on fasteners made from soft materials. The Torque Plus configuration employs a radius-corner design, shifting contact area and stress away from the fastener corners and minimizing fastener rounding, The overall length is 1-1/4 in.