Sunex 455MD 3 4" Drive Deep 6 Point Metric Impact Socket 55mm

From the Manufacturer No doubt, Sunex tools offer one of the most complete and toughest Impact Socket lines around. This 3/4" deep drive, 6 point metric impact socket is designed to tackle the toughest jobs with solid durability and keeps them pounding job after job. It features a radius corner design, causing the socket to grab the sturdy wall of the fastener instead of grabbing the corners, resulting in less wear on the fastener.