10 mm nut driver with a compact profile and a 100 mm (4inch) total length for extended reach in tight spaces. 1 or 4 inch hex shank Universal 1 or 4' hex shanks fit a variety of quickchange chucks and drills, drivers, or screwguns for fast tool changes and versatile use. CRV steel Chrome vanadium steel construction delivers strength and durability for regular, longterm use. Design Deep groove design supports extended reach applications and helps access hardware in recessed areas. Compatible with most quickchange chucks, drills, drivers, and screwguns, making it suitable for a range of construction, mechanical, and DIY tasks. Use scenarios Automotive and mechanical work in confined spaces: loosen or tighten 10 mm nuts on engine bays, suspension components, or mounting brackets where space is limited. Appliance and equipment maintenance: install or service hardware in tight panels or densely populated assemblies that require a long reach. DIY furniture and frame assembly: work in cramped areas under workbenches or inside cabinetry where a standard length tool cannot reach. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.