Bit, usually refers to the screwdriver bit installed on the power tool. The electric screwdriver is an electric screwdriver, which is used to tighten or loosen screws, and is a small electric tool.
According to different head types, the batch head can be divided into one-character, cross, rice-character, star, square, hexagonal, Y-shaped head, etc. Among them, the word and cross are the most commonly used in life. Hexagonal heads are not used much. Hexagonal wrenches are commonly used. For example, many screws on some machines are equipped with hexagonal holes, which is convenient for multi-angle force. But there are more than two types of batch headers. There are also star type, hexagon type, sleeve and so on. All in all, you can make a good and durable bit according to the needs of customers. The power source of the bit comes from an electric screwdriver or a pneumatic screwdriver. In the industry, there are two sizes of batch heads, one is the metric system, and it is often said that the unit is mm. There is also the imperial system, which is in inches, such as 1/4, 3/16, this number multiplied by 25 is the metric size. What bit is durable? The bit of a high-quality screwdriver is made of spring steel with relatively high hardness. It is hard but not brittle, and the hard middle belt is tough. So the hardness is generally around HRC58-60.