Thanks to its powerful magnetic motor, a speed of up to 170 rpm, and an all-metal gearbox, the screwdriver bit’s concentricity during rotation does not exceed 0.2 mm. The screwdriver shaft has a diameter of just 16.4 mm. The built-in rechargeable lithium-ion battery is powerful and long-lasting, capable of driving 400+ screws on a single full charge. The 24 high-quality S2 steel screwdriver bits are durable and tough, with a hardness of up to 60 HRC. The 24 types of precision screwdriver bits are ideal for disassembling and assembling most standard electronic devices and new small household appliances. Six of the 24 commonly used screwdriver bits are 45 mm long, allowing them to be used in hard-to-reach places, such as deep holes and tight spaces. Press the lower R button to drive screws in and the upper L button to drive them out. The buttons are made of soft TPU rubber and require only a light touch. The Type-C charging port is compatible with charging cables for popular electronic devices, making charging more convenient. The indicators next to the charging port display the charging status and alert you immediately when the battery is low.