According to needs, we should distinguish between professional and professional electric screwdrivers. Most electric screwdrivers are designed for professionals. When purchasing, we should distinguish between professional and general household electric screwdrivers. Generally, the difference between professional and general household electric screwdriver is in power. The professional electric screwdriver has a large power, which is convenient for professionals to reduce the workload. The general household electric screwdriver has a small project and a relatively small workload, so the input power of the electric screwdriver does not need to be large.

Before plugging in the power supply, the switch should be positioned in the off state. Pay attention to whether the power supply voltage is suitable for the use of the machine. When the electric screwdriver is not in use or the power is off, the plug should be turned off. When using, do not set the torque adjustment too large. When replacing the screwdriver head, be sure to pull the power plug away from the power socket and turn off the power of the screwdriver. Do not drop or hit the electric screwdriver during use.