The 23903 12 Piece Metric Magnetic Long Hex Bit Socket Set is designed for easy and efficient repairs. The powerful magnets in this hex wrench socket set prevent nuts, bolts, or fasteners from being dropped, ensuring you never lose hardware during a repair again. The bits measure 4 inches long for extra reach in tight, awkward spaces, making it easier to fit the right bit to your socket wrench for hassle-free repairs. This S2 steel magnetic hexagon bit set is reinforced with chrome vanadium steel, featuring a chrome plated finish and zinc phosphate treatment to prevent corrosion. The set includes 1/4" and 3/8" drive bits with sizes ranging from 2MM-12MM, preparing you for many projects. Each long socket set comes in a storage case for portability and protection, with embossed bit sizes to keep you organized. Powerful magnets prevent nuts, bolts, or fasteners from being dropped during repairs Bits measure 4 inches long for extra reach in tight, awkward spaces Reinforced with chrome vanadium steel and features a chrome plated finish to prevent corrosion Includes 1/4" and 3/8" drive bits with sizes ranging from 2MM-12MM Comes in a storage case with embossed bit sizes for organization and protection