MIXPOWER 3/8" Drive Deep Impact Socket Set, 6 Point, 48 Piece Standard SAE and Metric Sizes,5/16 Inch to 3/4 8 22 mm, Cr V

【High Quality CR-V Steel】Made from drop forged and heat treated chrome vanadium steel (50BV30) with a corrosion-resistant black phosphate finish, providing the durability for a hard use. 【High-torque】Radius corner design, 6-point opening reduces wear and increases torque on fasteners by placing force on fastener walls rather than fastener corners. 【Set includes】3" and 6" drive impact extension bar, 3/8" impact universal joint, 3/8" to 1/2" adaptor and the following socket sizes: SAE Size , Deep: 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4 (inches), Shallow: 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4 (inches), Metric Size: Deep: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,21,22mm, Shallow: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,21,22mm 【Dual Size Markings】 High-contrast laser etched with high-visibility markings and hard stamped with size labels, ensure permanent socket identification. 【Service Guarantee】All MIXPOWER Tools meet or exceed DIN performance standards. It comes with 1 year quality guarantee.