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source:Industry News release time:2021-04-12 Article author:Rosit Popular:Air band saw
The heavy-duty hex wrench is a special tool with an L-shaped shape and used for a hexagon socket head screw. The hex rod is shaped. The heavy hex wrench is specially used to turn the hex screw. The model of this special tool is based on the size of the opposite side of the hexagon, and the size of the bolt has a standard.
The heavy-duty allen wrench is an industrial-grade special wrench. The specifications are generally S17~S120mm, which belong to the heavy-duty wrench series. The material is 45# steel or 40Cr. The explosion-proof hexagonal wrench used in the flammable and explosive industries is made of beryllium bronze or aluminum bronze, and the specifications are S6~S55mm.
The main scope of application is: petroleum refining and petrochemical industry, coal mines, oil fields, natural gas chemical industry, gunpowder industry, chemical fiber industry, paint industry, fertilizer industry, various pharmaceutical industries. Petroleum tankers and LPG vehicles, airplanes, warehouses dealing in flammable and explosive products, electrolysis workshops, communication machine assembly workshops, flammable and explosive industries that require tools to be rust-proof, wear-resistant and explosion-proof, etc.
According to the torque requirements of the working space and the size of the bolt or nut, select the appropriate socket head. The sleeve has a short tubular shape, one end of which is hexagonal or dodecagonal, used to cover the bolt head; the other end has a square head hole, which is used to match the square tenon of the matching handle.
Types of hex socket wrenches
In addition to the common standard sleeves, there are many special sleeves, such as hexagonal long sleeves, hexagonal or dodecagonal flower-shaped sleeves, pneumatic sleeves, screwdriver sleeves and barrels. If the head is made of special-shaped bolts and nuts, special sleeves must be used for disassembly.
1. Hexagon socket
The depth of the hexagonal long sleeve is 3 times deeper than that of the standard sleeve. It is one of the commonly used modified sleeves in automobile maintenance work.
2Pneumatic sleeve
Allen socket wrench
Pneumatic sockets are specially matched with pneumatic impact wrenches. If ordinary sockets are used, pneumatic impact wrenches will produce instantaneous strong impacts during work, which may damage the sockets. The pneumatic sleeve is made of special chrome steel alloy, and the wall thickness is increased in the production process, the strength is reduced, and the toughness is enhanced, so that it can adapt to the harsh working environment.
3. Hexagonal pan-shaped sleeve
The flower-shaped sleeve is specially used to remove flower-shaped bolt head bolts. When disassembling, the flower-shaped sleeve can achieve surface contact with the bolt head, and adopts a curved structure, which can increase the disassembly torque while reducing the volume. In modern vehicles, the use of flower-shaped head bolts has gradually increased, and they are often used for door mounting bolts or stud bolts for intake manifolds.
Specification of hex socket wrench
According to the torque of the disassembled bolt and the working environment, the sleeve can be divided into three series: large, medium and small, and distinguished by the width of the square tenon of the matching handle
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