- Ideal for use on stubborn or damaged fasteners, and also on fasteners made from soft materials. - The Torque Plus™ drive configuration allows for a quick and easy socket engagement to the fastener flats, not the corners. - Uses a radius-corner design that shifts contact area and stress away from the fastener corners and distributes contact stresses over a large area of the socket, minimizing slippage. - Its internal design minimizes fastener rounding and allows the user to more easily turn worn, rounded, or rusted fasteners. Material / Alloy Steel Finish / Chrome Socket Depth / Deep Drive Type / Square Drive Size / 3/8 in Standards / ASME B107.5M, AS954E S3.8.1 Number of Points / 12 Overall Length / 2 1/8 in