1、[Versatile Hex Bit Socket Set] The socket features 1/4, 3/8, 1/2 inch drives, and the bit features 2mm, 2.5mm, 3mm, 4mm, 5mm, 5.5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 12mm, 14mm. 2、[Premium Materials] The hex key socket set is crafted from CR V and S2 alloy steel materials, ensuring exceptional durability with drop forged and heat treated construction. 3、[Erosion Resistant] The set undergoes full polishing, featuring Cr plated mirror finish sockets and zinc phosphate coated bits for enhanced lifespan. 4、[Wide Applications] Ideal for use with manual torsion tools, this kit includes all necessary sizes for tasks involving hex bits in bikes, cars, appliances, lawn equipment, machinery, and more. 5、[Convenient Storage] Equipped with a storage case, this hex bit socket set is easy to organize and carry, providing convenience and portability for your work needs.