[Multifunctional Repair Kit]This precision screwdriver set is equipped with 56 CR-V bits, which are sturdy and durable to meet your repair needs. In addition, this repair kit also comes with 24 practical accessories, such as magnetizer, ESD tweezers, spudger, electric screwdriver converter, etc., which can replace the battery and screen of mobile phones, laptops, repair the electronic components inside the computer, etc. You no longer have to worry about damaged appliances in your home. [Reliable Quality]The 56 drill bits of this pc tool kit are made of CRV steel with a hardness of up to 60 HRC, all drill bits are 851° high temperature quenching and surface nickel plating treatment, wear resistance, oxidation resistance, corrosion resistance, can last for a long time Use. At the same time, it is precisely machined to ensure that the drill has precise accuracy and ultra-high hardness, which can help you remove all kinds of tight screws and improve your work efficiency. [Upgraded Version