Features and Benefits: * Forged from the finest chrome molybdenum alloy steel – the best choice for strength and durability * Radius corner design - to extend the life of fasteners * Included in a heavy molded storage tray * Fully guaranteed No doubt, Sunex tools offer one of the most complete and toughest Impact Socket lines around. This 3/8" deep drive, 6 point impact socket set is designed to tackle the toughest jobs with solid durability and keeps them pounding job after job. Also each socket 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. The following sizes included: 9mm, 10mm, 11mm, 13mm, 14mm, 15mm, 17mm, and 19mm