The difference between ratchet wrench and torque wrench

Ratchet sleeve wrench is a kind of manual screw tightening tool, single-head, double-head multi-standard movable handle ratchet wrench (fixed hole). It is connected by the main plumbing sleeves of different sizes and by means of the bite and the male keys of the plum blossom sleeves through the hinged keys. Because a plum blossom sleeve has two sizes of plum-shaped through holes, it can be used for the tightness of two types of screws, thereby expanding the scope of use, saving raw materials and labor costs. The movable trigger can easily adjust the angle of use of the wrench. This type of wrench is used for the tightening operation of the screw and has the characteristics of strong applicability, convenient use and low cost.
Torque wrench - also called torque wrench or torque wrench. Torque is the product of force and distance. When tightening screw fasteners such as bolts and nuts, it is necessary to control the magnitude of the applied torque to ensure that the threads are tight and not too large due to the moment. Destruction of the thread, so use a torque wrench to operate. First set a desired upper torque value. When the applied torque reaches the set value, the wrench will issue a "Kata" sound or the wrench joint will bend a little at an angle. This means that no tightening has been done.
The difference between them is that the torque of the torque wrench can be set.