Features: 1. This wing nut is designed to quickly and effectively tighten or loosen wing nuts, screws, hooks when installing shutters/hurricane panels or doing other projects, help you get the job done faster and save a lot of time and energy.2. Just put it into the electric screwdriver and use it, you can protect your hands from damage caused by using other tools, faster than screwing by hand.3. This wing nut driver is a practical tool, it can be used with any electric drill or electric screwdriver (1/4 inch hex shank), it is a good helper when that works well... here.4. This small wing nut is made of steel, strong and durable, has a long service life. Specification: Type: 1/4 inch Hex Shank Material: Chrome Vanadium Alloy Steel Color: Gray Size: 10/12/14/16/18mm Quantity: 1pc Package includes: 1pc * Nut Screwdriver Note: Please allow 0.5-1cm error due to manual measurements. Pls make sure you don't mind before bidding. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!