Forged from the finest chrome molybdenum alloy steel - the best choice for strength and durability. Fully guaranteed. Included in a heavy-duty blow mold case No doubt, Sunex tools offer one of the most complete and toughest Impact Socket lines around. This 3/4 deep drive 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. This set includes: 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, 1-9/16, 1-5/8, 1-11/16, 1-3/4, 1-13/16, 1-7/8, 1-15/16 and 2.