Tools needed: screwdriver.
A screwdriver is a tool for screwing screws. Usually it has a thin wedge-shaped head, which can be inserted into the groove or notch of the screw head ―― it is called "screwdriver" in Beijing, Tianjin, Hebei, Shandong, Henan and Shaanxi dialects, "screwdriver" in Jiangxi, Anhui, Hubei, Shaanxi Guanzhong and other places, "tool change" in the central and western regions and "rotary chisel" in the Yangtze River Delta region.
Main types and functions:
1, common screwdriver
It's the kind of screwdriver with the head and the handle together. It's very easy to prepare and you can use it as long as you take it out. However, because there are many differences in the length and thickness of screws, it is sometimes necessary to prepare many different screwdrivers.
2. Combination screwdriver
A screwdriver with a separate screwdriver head and handle. When installing different types of screws, you only need to replace the screwdriver head, and you don't need to carry a lot of screwdrivers. The advantage is that it can save space, but it is easy to lose the screwdriver.
3. Electric screwdriver
Electric screwdriver, as its name implies, is to install and remove screws with electric motor instead of human hands, usually a combination screwdriver.
4. Clock screwdriver
It belongs to a precision screwdriver and is often used to repair hand-held clocks, so it is called this.
5, small diamond screwdriver
The head handle and body length are smaller than the commonly used screwdriver, not the clock screwdriver.
As far as its structural shape is concerned, there are usually the following types:
1, straight. This is the most common one. The head shapes are Chinese characters, crosses, meters, T (plum blossom) and H (hexagon).
2, l type. It is more common in hexagonal screwdriver, which uses its longer rod to increase torque, thus saving more effort.
3. T-shaped. It has many applications in automobile repair industry.