Multi-function - The twist socket set is suitable for removing rust and wear, as well as covering the paint coating of nuts, bolts. 3/8’ square drive 1/4’, 5/16’ (8 mm), 3/8’, 10 mm , 7/16’ (11 mm), 12 mm, 1/2’, 13 mm , 9/16’ (14 mm), 5/8’ (16 mm), 17 mm, 11/16’ and 3/4’ (19 mm) High Power and Shock Resistance - High Hardness Chrome Molybdenum Steel Treated Bolt Nut Our Worn Nut Extractor Kit is precision engineered to quickly and effortlessly extract damaged bolts, nuts and screws All 13 pieces of impact bolts and nut drivers come in a blow molded case that houses each piece Note: It does not include other things, the color is based on the first picture, and other pictures only show the effect Due to differences between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement. Please allow deviation. Thanks!