The socket of a torsion wrench can only be used to tighten one type of bolt per model, for example, the 27 # socket can only tighten one type of bolt per m16. Regardless of the length of the bolt, it can be tightened, but other types of bolts cannot be tightened

所有每臺扳手都可以換不同型號的套筒，用來擰不同型號的螺栓

All wrenches can be replaced with different types of sockets to tighten different types of bolts

扭剪扳手專用于扭剪螺栓的使用，一般鋼結構工程中比較常用。

The shear wrench is specially used for shear bolts, which is commonly used in general steel Structural engineering.

鋼結構工程中有大六角螺栓也有扭剪螺栓，大六角螺栓只能用定扭矩扳手，不能用扭剪扳手，而扭剪螺栓也只能用扭剪扳手來擰，不可以使用定扭矩扳手，兩種螺栓造型不同，使用不同的扳手，所以一定要確定螺栓是什么類型的，根據(jù)螺栓來挑選適合的扳手。

There are both large hexagon bolts and shear bolts in the steel Structural engineering. Large hexagon bolts can only be tightened with a fixed torque wrench, not a shear wrench, while shear bolts can only be tightened with a shear wrench, not a fixed torque wrench. The two types of bolts have different shapes and use different wrenches, so it is necessary to determine what type of bolt is and select the appropriate wrench according to the bolt.