扳手是一种常用的安装与拆卸工具。为了提高工作效率，减少人工作业难度。工业上设计了种类繁多的电动扳手工具，我们常见的有冲击扳手、扭剪扳手、定扭矩扳手、转角扳手、角向扳手。在对于钢结构行业，
Wrench is a common installation and removal tool. In order to improve work efficiency and reduce the difficulty of manual operation. Industrial design a wide range of electric wrench tools, we have a common impact wrench, torque wrench, fixed torque wrench, angle wrench, angle wrench. In the steel structure industry,
冲击电动扳手主要是初紧螺栓的，它的使用很简单，就是对准螺栓扳动电源开关就行。在脚手架搭建、基础性工程螺栓紧固等场景中，由于其便携性和高能率获得终端客户的青睐。
The impact electric wrench is mainly used to tighten the bolt initially. Its use is very simple, that is, to align the bolt and pull the power switch. In the scene of scaffold construction and bolt fastening of basic engineering, it is favored by end customers because of its portability and high energy rate.
电动扭剪扳手主要是终紧扭剪型高强螺栓的，它的使用就是对准螺栓扳动电源开关，直到把扭剪型高强螺栓的梅花头打断为止。
The electric wrench is mainly used to tighten the high-strength bolt. Its use is to align the bolt and pull the power switch until the quincunx head of the high-strength bolt is broken.
相对于常见的电动扳手，扭剪扳手的知名度没有那么广，但是作为一种高强度、高精度的螺栓紧固装置。它已经被广泛应用于各种城市建设、桥梁建设、水利工程等大型工程场景中。
Compared with the common electric wrench, the torsional shear wrench is not so well-known, but as a high-strength, high-precision bolt fastening device. It has been widely used in a variety of urban construction, bridge construction, water conservancy projects and other large engineering scenarios.
在各类工程施工中，螺栓的紧固都有很严格的力矩要求，我们拿桥梁建设来说： 螺栓紧固的精度就代表了整个桥梁工程的质量。
In all kinds of engineering construction, the bolt fastening has very strict torque requirements, we take the bridge construction as an example: the accuracy of bolt fastening represents the quality of the whole bridge engineering.
