Features: Set of 2 pieces: This drill nut driver is designed to quickly and efficiently tighten or loosen wing-nuts, hooks when installing shutters/panels or other projects, saving a lot of time and getting the jobs finished rapidly. Fast tightening, just turn the wing-nut with an electric drill: with your impact driver or drill, you can drive almost any wing-nut rapidly than manually. Safety: Simply put it into the electric screwdriver, you can install the wing-nut/shutter, no need to worry about using other hardware to sprain the thumb, you can save finger wear and tears. Suitable objection: This wing-nut driver is the perfect tool for any electric drill (1/4 inch hex shank). The total length of the tool is approximately 6.55 cm (2.6 in); The outer diameter of the sleeve is approximately 17.8 mm (0.7 in); The slot on the drill tool is 4 mm (1.55 in) wide. Practical: Wing-Nuts Screwdriver Group A have snow storms protection tools for window and door hardware fittings Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material:High-carbon Steel Size:0.75*2.56in Diammeter:12.3mm Package List: 1*65mm Hexagons Slotted Sleeve