Stanley Proto J5319M 1/2-Inch Drive Deep Socket, 19mm, 12 Point,Stanley Proto,J5319M" /> Proto 12 Point Sockets are ideal for use on stubborn or damaged fasteners and also on fasteners made from soft materials The Torque Plus design is a high performance drive configuration which allows for quick and easy socket engagement to the fastener flats The Torque Plus configuration employs a radius-corner design, shifting contact area and stress away from the fastener corners The Torque Plus internal design minimizes fastener rounding, helps to extend fastener life