Torque wrench is also called torque wrench, torque wrench, torque adjustable wrench. Torque wrench is a kind of wrench, generally divided into two categories: electric torque wrench and manual torque wrench.

力矩扳手主要特征就是：可以设定扭矩，并且扭矩可调。

The main feature of torque wrench is that the torque can be set and adjusted.

力矩扳手的应用：

Application of torque wrench:

力矩扳手就是紧固螺栓的，高强螺栓可分为扭剪型和大六角型两种，国标扭剪型高强螺栓为M16、M20、M22、M24四种，现在也有非国标的M27、M30两种；国标大六角高强螺栓为M16、M20、M22、M24、M27、M30等几种。一般的对于高强螺栓的紧固都要先初紧再终紧，而且每步都需要有严格的扭矩要求。大六角高强螺栓的初紧和终紧都必须使用定扭矩扳手。

Torque wrench is used to fasten bolts. High strength bolts can be divided into two types: torsional shear type and large hexagon type. National standard torsional shear type high strength bolts are M16, M20, M22 and M24, and now there are two kinds of non-national standard M27 and M30. National standard large hexagon high strength bolts are M16, M20, M22, M24, M27 and M30. Generally, for the fastening of high-strength bolts, the initial tightening and then the final tightening are required, and strict torque requirements are required for each step. Constant torque wrench must be used for initial and final tightening of large hexagon high strength bolt.