HeatTreated Chrome Vanadium Steel Nut Driver Set • Durable Construction: Crafted from heattreated chrome vanadium (CRV) steel for exceptional hardness, wear resistance, and rust protection. Built to withstand heavy use without bending or breaking, ensuring a long service life. • Precision Performance: Nonmagnetic design with strong hexagonal sockets provides a secure fit for fasteners. The 1/4 inch hex shank drive is compatible with most corded and cordless power drills for quick and efficient operation. • Convenient Compatibility: Shank length is approximately 1 inch (2.5 cm) with a diameter of 1/4 inch (6.35 mm), ideal for a wide range of applications in home improvement, automotive , woodworking, and professional machinery maintenance. • Complete Size Range: Includes 15 sizes to handle diverse fastening needs – 3/16 inch (4.76 mm), 1/4 inch (6.35 mm), 9/32 inch (7.14 mm), 5/16 inch (7.93 mm), 11/32 inch (8.73 mm), 3/8 inch (9.53 mm), 7/16 inch (11.11 mm), plus metric sizes 5 mm, 5.5 mm, 6 mm, 7 mm, 8 mm, 10 mm, 12 mm. • Practical Applications: Home Projects: Efficiently assemble furniture, install shelves, and carry out general repairs. Automotive Work: Remove or install nuts and bolts when servicing car parts or engines. Woodworking: Tighten hardware for cabinets, outdoor structures, or custom builds with precision. This set offers reliable strength, accurate sizing, and broad compatibility, making it an essential addition to any professional or DIY toolkit.