No More Dropping Problem: The drill socket set has strong magnet in, it helps hold nuts securely, this is the great advantage of the magnesium, especially in hard to reach places, no space for fingers Heavy-duty: Chrome-vanadium steel material, professional quenching heat treatment, makes it sturdy, strong, and very durable, solid construction and high hardness, no breaking in daily use, clear size markings on each socket, easy recognition for quick acess Handy Removal Tool : Nut runner is used to loosen and tighten hex head bolts and nuts, improves speed of removing fixings, a great addition to toolbox around house, such as repairing radiator， dismantling storage shelf, roofing jobs, also useful for cars, bicycle, camper van, motorcycle, and other machine maintenance 1/4 inch Hex Shank: The nut driver bit set works with cordless drill, electric screwdriver, manual rachet handle, fit into standard 6.35mm drill chucks, but not suitable for heavy use on impact driver, impact gun Wider Selection of Sizes: This magnetic nut driver set includes 14 popular sizes, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, useful for more different maintenance work Care Instructions: The socket set for drill is coated with anti-rust oil to prevent corrosion. Please wear gloves when handling, Storage away from water, Manufacturer: imatenn