3 SIZES: Includes 3 wing nut drivers. Hex Socket Sizes: 10mm, 12mm, 16mm, all 1/4" hex shank, fits most powered corded or cordless drills.STURDY AND DURABLE: Wing nut sockets are made of CR-V steel. The surface is sandblasted. So it has strong toughness, wear resistance, very durable, safe and efficient.Slotted Design: Upgraded slotted design allows wing nut sockets to tighten or loosen hex shank screws, panel wing nuts, screw eye C-hooks and Q-shaped hangers, and RV leveling scissor jack socket drills.Universal 1/4" Hex Shank: This steel wing nut driver is designed with a universal 1/4" hex shank. It matches most powered corded or cordless drills, 1/4" hex shank impact drivers, or 1/4" hex shank cordless drills.SAVE YOUR TIME: The screw hook driver is easy to use. Simply attach the socket to your impact driver or drill and let the tool do the work. It only takes a few seconds. It saves time and energy, and protects your hands from injury.