Description: 1.Wing Nut Driver This wing nut driver is designed to quickly and efficiently tighten or loosen wing nuts, bolts, hooks when installing hurricane shutters/panels or doing other projects, saving a lot of time and getting the done faster 2.Enhanced Efficiency Quickly to tighten, just simply turn the wing nut with a power drill. Your impact driver or drill you drive just about any wing nuts bolt or C head eye hook screw up to 5x faster than you can by hand 3.Reliable This small wing nut driver is made from steel to withstand heavy-duty use. Its sturdy construction ensures longevity and reliability, making it a dependable tool in your arsenal for years to come 4.Exquisite Size This Steel wing nut driver is a perfect tool that works with any power drill (1/4 inch hex shank). The total length of the tool is about 6.55cm(2.6 inch); the outer diameter of the socket is about 17.8mm(0.7 inch); and the slot cutout is 4mm(0.157 inch) wide 5.Reassuring Safety Just it into a power screwdriver and get the wing nut / shutters installed without concern about spraining your thumbs by using other hardware tools, saves wears and tears on your fingers Specification: Product name: Butterfly hole sleeve Product length: 66MM Hexagon handle diameter: 1/4(6.35MM) Sleeve outside diameter: 18MM Sleeve inner diameter: 12MM Sleeve slot width: 4MMProduct weight: 0.04KG Package Includes: 1pcs * Butterfly hole sleeve