1、沖擊電動扳手：主要是初緊螺栓的，它的操作簡單，就是對準螺栓扳動電源開關就行。

1. Impact electric wrench: mainly used for initial tightening of bolts, its operation is simple, just align the bolt and pull the power switch.

2、電動扭剪扳手：主要是終緊扭剪型高強螺栓的，它的使用就是對準螺栓扳動電源開關，直到把扭剪型高強螺栓的梅花頭打斷為止。

2. Electric torsion shear wrench: mainly used for final tightening of torsion shear high-strength bolts. Its use is to align the bolt and pull the power switch until the plum blossom head of the torsion shear high-strength bolt is broken.

3、電動定扭矩扳手：既可初緊又可終緊，它的使用是先調節(jié)扭矩，再緊固螺栓。

3. Electric fixed torque wrench: It can be used for both initial and final tightening. Its use is to first adjust the torque and then tighten the bolts.

4、電動轉角扳手：主要也屬于定扭矩扳手的一種，它的使用是先調節(jié)旋轉度數(shù)，再緊固螺栓。

4. Electric angle wrench: It mainly belongs to a type of fixed torque wrench, and its use is to adjust the degree of rotation first, and then tighten the bolt.

5、電動角向扳手：是一種專門緊固鋼架夾角部位螺栓的電動扳手，它的使用和電動扭剪扳手原理一樣。

5. Electric angle wrench: It is a type of electric wrench specifically designed to tighten bolts at the angle of a steel frame, and its use is similar to the principle of an electric torsion wrench.