This nut tool is 1/4" magnetic that fits most corded or cordless drills, with a strong internal hex socket. Set includes: 9 Power bits Nut Driver (Metric): 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm. It is widely used in DIY supplies, auto parts, woodworking, professional machinery, etc. The product is easy to install and disassemble, and is not easy to come off when using Rust-proof, non-slip, high occlusion , waterproof and flexible. Widely used in hex tools such as air wrenches, electric wrenches, air drills, electric drills, electric drills, gun drills, hand screwdrivers, etc. Product Description Product Description Specifications: Material: Chrome Vanadium Steel Shank Shape: Hexagon Shape Shank Diameter: 1/ 4 inch Package includes: 14 x Hex Socket Inserts Contains: 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm. Product design: 1. Made from high quality chrome vanadium steel materials. 2. Surface sandblasting, strong rust and corrosion resistance. 3. High temperature quenching treatment improves durability and durability. Hexagonal handle design, 1/4 inch shank fits most. Corded or cordless motorized drills. 5. Easy to install and disassemble, not easy. Falling off during use. Various possible uses: 1. Suitable for home improvement, woodworking, auto parts, professional machinery repairs, etc. 2. Widely used in such hex tools as air screwdrivers, electric screwdrivers, air drills. Electric drill, barrel drill, hand screwdriver, etc.