Superior forging made from chrome vanadium steel that has been heat treated, every socket has been surface treated with black phosphoric acid for protection against rust and oil.
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.
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
Laser marking, each with a clear laser size mark, makes it quick and easy to select even in dim light.