Made of chrome steel, high temperature wear resistance, good toughness and durable to use.Universal 1/4'' hex shank is suitable for quick-change/release and secure locking of chucks, drill bits, driver and screw-gun.The magnetic pad inside the socket holder, which can firmly grasp the hexagonal nut and fastener for easy installation or loosening/removal.Suitable for installation in those hexagonal tools, such as pneumatic screwdriver, electric screwdriver, pneumatic drill, electric drill, manual screwdriver, etc.Can be used for home DIY, woodworking, professional machinery, and professional contractor maintenance.Specification:Socket Size: 6mm, 8mm, 10mm, 12mm,14mmShank Size: 1/4-inch HexTotal Length: 65mm / 2.5-inchMaterial: Chrome SteelPackage Content:1 Set (5 Pcs) x Nut Drivers.