High Hardness CRV: Crafted from wear-resistant chrome vanadium steel, ensuring durability and high temperature resi for long-lasting use. Versatile Bit Selection: This electronics screwdriver set includes various bits, meeting the needs for maintaining and disassembling different electronic products. Wide Application: Ideal for computers, mobile phones, drones, and small household appliances, making it a versatile and indispensable tool. Complete Aessories: Comes with extension rod, teles rod, pry bar, and tweezers, providing a full range of aessories for convenient use. If you have any questions about the product, please feel free to contact us via email., Manufacturer: ASerZenith