Torsion wrench is a common manual tool that can be used to tighten or loosen fasteners such as screws and nuts. It has a simple structure and is easy to use, making it one of the essential tools in fields such as home maintenance and mechanical processing.

扭剪扳手的主要部件包括手柄、扳手頭和扭剪機構。手柄通常采用塑料或橡膠材料制成，手感舒適，防滑性好。扳手頭則根據(jù)不同的使用需求，有不同的形狀和尺寸。扭剪機構是扭剪扳手的核心部件，它可以將手柄的旋轉轉化為扳手頭的線性運動，從而實現(xiàn)擰緊或松開緊固件的目的。

The main components of a torsion shear wrench include a handle, wrench head, and torsion shear mechanism. The handle is usually made of plastic or rubber materials, providing a comfortable feel and good anti slip performance. Wrench heads come in different shapes and sizes according to different usage needs. The torsion shear mechanism is the core component of a torsion shear wrench, which can convert the rotation of the handle into linear motion of the wrench head, thereby achieving the purpose of tightening or loosening fasteners.

使用扭剪扳手時，要選擇合適的扳手頭，然后將其插入緊固件中。接著，用手握住手柄，順時針或逆時針旋轉，直到緊固件達到所需的緊度。如果需要松開緊固件，只需將手柄逆時針旋轉即可。

When using a torsion wrench, first select a suitable wrench head and then insert it into the fastener. Next, hold the handle with your hand and rotate it clockwise or counterclockwise until the fastener reaches the required tightness. If you need to loosen the fasteners, simply rotate the handle counterclockwise.

扭剪扳手的優(yōu)點在于它可以精確地控制緊固件的緊度，避免過緊或過松的情況發(fā)生。此外，它的結構簡單，使用方便，不需要電源或氣源，可以在任何地方使用。

The advantage of a torsion wrench is that it can accurately control the tightness of fasteners, avoiding situations of over tightening or loosening. In addition, its structure is simple, easy to use, and it does not require a power or air source, and can be used anywhere.

總之，扭剪扳手是一種實用的手動工具，它可以幫助我們完成各種緊固件的擰緊或松開工作。在使用時，我們應該選擇合適的扳手頭，掌握正確的使用方法，以免造成不必要的損失。

In short, a torsion wrench is a practical manual tool that can help us complete the tightening or loosening of various fasteners. When using, we should choose the appropriate wrench head and master the correct usage method to avoid unnecessary losses.