Key to DIY SuccessOur hex key set has a ball head that can be tilted 25 and perform difficult tasks in precision mechanics, watchmaking and model making. [Universal] A super set of 18 pieces, the most versatile combination. 9 hex size types: 1.5, 2, 2.5, 3, 4, 5, 6, 8 and 10 mm and 9 Torx types: T10, T15, T20, T25, T27, T30, T40, T45, T50 . Never worry about the wrong size again. HIGH QUALITYThis hex key set is completely made of high quality Cr-V steel for durability. Hardness up to HRC65. The nickel-plated surface is corrosion resistant and is a stable tool for amateurs and professionals. You can use it boldly without worrying about accidental damage. Universal Full size meets all needs. It is widely used in the maintenance of electronics, bicycles, machinery, automobiles and motorcycles. Whether it's precision machine screws or microelectronics, use them and you'll have a solution. Easy to StoreThe handy plastic holder is easy to store, convenient and quick. Easier to pull the desired size.