Features: Brand new and high quality Constructed from steel with a corrosion-resistant sandblasted finish, high hardness and built to last. This drill nut driver bit designed to tighten or loosen wing nuts, bolts, hooks quickly and effectively. This 1/4inch hex shank fit release and firmly lock of standard chucks , drill, driver and screw guns. Applicable for installing in those hexagon tools, such as pneumatic screwdriver, electric screwdriver, pneumatic drill, electric drill, manual screwdriver, and more. Deep grooves. Suitable for extended reach applications. Specifications: Material: Steel Finish: Sandblasted Drive Size: 1/4Inch Hex Socket Size: 8mm/10mm/12mm/14mm/17mm/19mm Total Length:Approx. 80mm/3.15inches Package Includes: 1x Slotted Extension Driver note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.