What are the characteristics of socket wrenches?

The socket wrench is composed of multiple sockets with hexagonal holes or dodecagonal holes, and is equipped with various accessories such as handles and connecting rods, which is especially suitable for tightening bolts or nuts with very narrow positions or deep depressions. If the nut end or bolt end is completely lower than the connection surface, the diameter of the concave hole cannot be used with an open-ended wrench or a adjustable wrench or Torx wrench, and only a socket wrench can be used due to the space limitation of the bolt. A socket wrench is generally called a socket wrench: it consists of a plurality of sockets with hexagonal holes or dodecagonal holes, and is equipped with a variety of accessories such as handles and connecting rods, and is especially suitable for screwing bolts or nuts with very narrow positions or deep depressions. Sleeves can be divided into metric and English. Although the concave shape of the casing is the same, the outer diameter and length are designed according to the shape and size of the corresponding equipment. There is no uniform regulation in the country, so the design of sleeves is more flexible and meets the needs of the public. Generally, socket wrenches are attached with a set of socket heads of various specifications, as well as rotary handles, connecting rods, universal joints, screwdriver heads, elbow handles and so on. Used for inserting hexagon nuts. The socket head of the socket wrench is a concave hexagonal cylinder; Wrenches are usually made of carbon structural steel or alloy structural steel. The head of the wrench has a specified hardness, while the middle and handle parts are elastic. The existing domestic socket wrench manufacturers are concentrated in Zhejiang, Shandong and other provinces, and a large number of manufacturers represented by Taiwan-funded or Taiwan-funded enterprises are focusing on the domestic market. For example, Jin Tuo Hardware Tools, the largest socket wrench manufacturer in China, is a typical factory representative, and the leading enterprise represented by Jin Tuo has promoted the progress and development of the whole industry. There are also some excellent manufacturers in China who keep innovating and gradually improve the technology of socket wrenches. For example, Huafeng Giant Arrow Tool, the most innovative manufacturer in China, has obtained a national patent on the surface treatment project of socket wrench.