Quality Construction Crafted from grade Chrome Vanadium (CrV) steel, this nut driver offers exceptional resistance to corrosion and wear. The durable CrV steel build provides hardness for longlasting performance, even with frequent use. Precise Size and Versatile Compatibility Designed with a 5/16 inch hex socket head, this nut driver is suitable for a wide range of fastening and loosening tasks. The 93 mm (3.7 inch) shaft length delivers reach, making it easy to work in both open and tight spaces. The 45# specification ensures compatibility with various applications, from home improvement to professional mechanical work. Convenient TwoPiece Set Includes two identical nut drivers, giving you a spare on hand or allowing for multiuse setups without constant tool changes. Ideal for professionals and hobbyists who value efficiency and preparedness. Easy Identification Tip scale and handle scale markings allow you to quickly confirm the size and type of nut driver, saving time and reducing errors during work. Practical Applications Automotive repairs: Easily access and tighten hex nuts in engine bays and undercarriages. Furniture assembly: Fit hardware precisely without stripping bolts or damaging fasteners. HVAC installation: Reach recessed fasteners in ventilation units and ductwork with ease. This nut driver set combines strength, corrosion resistance, precise sizing, and practical convenience to deliver reliable performance for a wide range of tasks.