19PCS Impact Socket Set

Size: 3/8"、7/16"、1/2"、9/16"、5/8"、11/16"、3/4"、13/16"、7/8"、15/16"、1"、1-1/16"、1-1/8”、1-3/16“、1-1/4”、1-5/16"、1-3/8“、1-7/16”、1-1/2“ High quality forging, forged from heat treated chrome vanadium steel, each socket surface treated with corrosion resistant black phosphoric acid to prevent oil and rust. Laser marking, each with a clear laser size mark, makes it quick and easy to select even in dim light. 6-point socket design expands the contact surface between the socket and the fastener, increasing the locking force, reduces wear and prevents rounding off at corners Customized storage boxes, each with a designated slot, so that the socket does not fall off easily. Sizes are also printed next to each card slot for easy identification.