MIXPOWER 12 Pieces 3/8″ Drive Semi-Deep Impact Socket Set,12 Point,SAE,5/16″-1″,CR-MO,Axle Nut Impact Grade Socket for Easy Removal. Color coded ring makes it effortless to identify socket sizes. 【High-torque】Radius corner design, 12-point opening reduces wear and increases torque on fasteners by placing force on fastener walls rather than fastener corners.