The precision bits are made of premium CRV steel, whose hardness can reach to HRC52-56, it is durable and practical. This screwdriver set are designed for repairing most of home electronics, such as laptops, smartphones, game consoles, tablets, desktops,toys, watches, glasses, fans, etc.
【Heartwarming Reminder】If there are any problems with the use or function of the product, or if the product is defective/damaged, please contact the seller first, we will do our best to solve the problem for you.