The wrench is mainly used to tighten the bolt. Its use is very simple, that is, to align the bolt and pull the power switch. 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.

电动定扭矩扳手既可初紧又可终紧,它的使用是先调节扭矩,再紧固螺栓。电动转角扳手主要也属于定扭矩扳手的一种,它的使用是先调节旋转度数,再紧固螺栓。电动角向扳手是一种专门紧固钢架夹角部位螺栓的电动扳手,它的使用和电动扭剪扳手原理一样

The electric constant torque wrench can be used for both initial tightening and final tightening. Its use is to adjust the torque first and then tighten the bolts. Electric angle wrench is also a kind of fixed torque wrench. Its use is to adjust the degree of rotation first, and then tighten the bolt. The electric angle wrench is a kind of electric wrench specially used to fasten the bolts in the angle part of the steel frame. Its use principle is the same as that of the electric torsional shear wrench

扭剪扳手主要是终紧扭剪型高强螺栓的，它的目的就是把扭剪型高强螺栓的梅花头打断即可。工作时将扳手头对准螺栓头，扣动开关即可开始工作，几秒后，螺栓梅花头将被扭断，然后抽出扳手扣动扳机将梅花头弹出，即结束工作。

Torsional shear wrench is mainly used to tighten torsional shear high-strength bolt. Its purpose is to break the quincunx head of torsional shear high-strength bolt. When working, align the wrench head with the bolt head, and pull the switch to start working. After a few seconds, the quincunx head of the bolt will be broken, and then pull out the wrench to pull the trigger to eject the quincunx head, which is the end of the work.