1. The 50-piece set has various specifications and types, including most types of drill bits, which can handle a variety of different screws and are easy to use. 2. CR-V chrome steel material, strong and durable 3. This computer screwdriver repair kit comes with several commonly used replacement bit models, such as Phillips, slotted, Torx, Y-type, and hex. If the bit is lost or damaged, this can reduce the difficulty of finding a new bit or replacing a new screwdriver. , making this electronics repair kit last longer and save you money 4. Made of high-quality CR-V steel, this replaceable screwdriver offers impressive strength, precision, and durability without damaging your device. Each bit is treated with high temperature to ensure the stability and resistance of the bit to chipping, ensuring the long-term use of the bit.