Proto Drive Universal Impact Sockets Ball and spring design which allows for a 30° working angle. Smooth 360° rotation. Ideal for use on stubborn or damaged fasteners, and also on fasteners made from soft materials. TorquePlus™ design is a high performance drive configuration which allows for quick and easy socket engagement to the fastener flats, not the corners. TorquePlus™ configuration employs a radius-corner design, shifting contact area and stress away from the fastener corners and distributing contact stresses over a large area of the socket, minimizing slippage Pack of 1