

Due to the use of occasions and the diversity of workpieces. The electric screwdriver should have different structural types to meet different needs. This is to solve the selection problem of the electric screwdriver development process. On the contrary, for a specific user, how to purchase their own assembly tools from many different types of electric screwdrivers from the perspective of availability, economy, and rationality for the characteristics of their own work and workpiece, this requires a choice.
Considering the structure, workpiece characteristics, and usage occasion. On the one hand, battery-type electric screwdrivers for household and non-industrial power. On the other hand, electric screwdriver made of series motor for workpieces with large power and large torque. A low-voltage electric screwdriver with a centralized power supply using for the case of mass centralized use. Individually powered low-voltage electric screwdrivers or "high-voltage" electric screwdrivers for decentralized applications.
For research, design and producers, the selection is very important. A reasonable selection can satisfy the needs of many different users with fewer types of products. And achieve higher economic and social benefits; For the user, it is also necessary to select different types of electric screwdrivers for their own use and workpiece assembly characteristics. Improper purchase, resulting in spending money to achieve the desired effect, can not even be wasted on their own components.