Made of chrome vanadium steel with long service life and high durability. Solid inner hex socket without magnet. This screwdriver bit set fits most electric or cordless drills for hex head screws. 9 hex sockets: 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm. Wide applications. Suitable for DIY, woodworking, auto parts, professional machine repair, etc. Description: Made of premium material, they are practical and durable for long-term use. Compact and lightweight, easy to use but not easy to fall off during use. Ideal for woodworking, home DIY, professional machine repair, auto parts and more. Features: Brand: Ounona. Color: As picture shown. Material: Chrome vanadium steel. Made of chrome vanadium steel, they are sturdy, practical and durable for long-term use. They are corrosion-resistant and not easy to rust with good abrasion resistance. Suitable for pneumatic screwdriver, electric screwdriver, air drill, electric drill, manual screwdriver and more. Easy to install and disassemble, not easy to fall off when using. The package includes hex sockets of different specifications: 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm. Ideal for woodworking, home DIY, professional machine repair, auto parts and more. Contents: 9 Hex Sockets