Socket wrench is mainly used when the nut end or bolt end is completely lower than the connected surface, and the diameter of the concave hole can not be used for open-end wrench, adjustable wrench and ring wrench, so socket wrench is used. In addition, due to space limitation of bolt parts, socket wrench can only be used.

Socket wrench is generally known as sleeve: it is composed of multiple sleeves with hexagonal hole or twelve hole and equipped with handle, extension rod and other accessories. It is especially suitable for screwing bolts or nuts with very narrow position or deep depression. Bosch electric tool barrel can be divided into metric system and British system. Although the concave shape of the sleeve is the same, the outer diameter and length of the sleeve are aimed at the shape and ruler of the corresponding equipment Inch Design, there is no unified national regulations, so the sleeve design is relatively flexible, in line with the needs of the public.

The socket wrench is usually attached with a set of socket heads of various specifications, as well as swing handle, extension rod, universal joint, screwdriver joint, elbow handle, etc., which are used to insert the hexagon nut. The socket head of the socket wrench is a concave hexagonal cylinder, Workpro tools The wrench is usually made of carbon structural steel or alloy structural steel. The head of the wrench has the specified hardness, and the middle and handle parts are elastic.

Commonly used turning tool materials are as follows:.

High carbon steel: high carbon steel turning tool is a kind of carbon steel with carbon content between 0.8% and 1.5%. It is used after quenching and hardening. The friction in cutting is easy to temper and soften, and is replaced by other tools such as high speed steel. Generally, it is only suitable for cutting soft metal materials. The commonly used ones are dcask1, SK2, sk7, etc.

High speed steel, such as high-speed steel with high-speed steel and high-speed steel, such as high-speed steel with high-speed steel, such as high-speed steel with high-speed steel, such as high-speed steel with high-speed steel, such as high-speed steel with high-speed steel, such as high-speed steel with high-speed steel and high-speed steel, such as high-speed steel with high-speed steel, such as high-speed steel with high-speed steel, such as high-speed steel cutting tool with high-speed steel, such as high-speed steel with high-speed steel, such as high-speed steel with high-speed steel, such as high-speed steel with high- Speed steel turning tools such as skh2, skh4a, skh5, skh6, skh9, etc.

It is not affected by the high-speed cutting tool and high-speed cutting tool of stellite alloy.

Guangxi Nanning Julian hardware and Electrical Machinery Co., Ltd. is a large-scale hardware tool wholesale company with general agency and special distribution rights of more than 120 famous hardware tool manufacturers represented by Stanley tools, Bosch electric tools, wankebao tools, Qinghai Lake tools, Dongcheng DCA, etc., with contact number of 187-7806-0008, http://dldaoyou.com/.