[Material] Screwdriver socket is made of high quality chrome vanadium steel (CR-V). It has high hardness, good wear resistance, oxidation resistance and fracture resistance. It resists high bending stresses. The screwdriver socket is extremely durable. [Different Socket Sizes] 10 different sizes, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm screwdriver bit to meet all your needs and perfectly match your tools. This screwdriver socket adapter has different sizes and shapes to match your tool for you to choose. [ Easy to Install and Disassemble] The strong magnetism of the socket bit can be perfectly matched with your tool, the quick adjustment, the features less wear, easy installation and super strong magnetic force make the socket set easier to use. use. [Widely Applications] This screwdriver socket holder is widely used in household, DIY, auto repair, auto repair, appliance repair, maintenance big machines. Suitable for screwdriver socket such as electric screwdrivers, drill bits, air screwdrivers, air drills, hand screwdrivers, etc. The nut drill set is constructed from chrome-vanadium steel , which can provide high hardness and corrosion resistance.