Stanley Proto J7212S 3/8-Inch Drive Impact Socket, 3/8-Inch, 8 Point Proto 8 Point Impact Sockets are ideal for use on stubborn or damaged fasteners and also on fasteners made from soft materials The TorquePlus design is a high performance drive configuration which allows for quick and easy socket engagement The TorquePlus configuration employs a radius-corner design, shifting contact area and stress away from the fastener corners The TorquePlus internal design minimizes fastener rounding, helps to extend fastener life Drive end chamfer and four detents help provide quick positive engagement with drive tool on any of the socket drive walls