What is the difference between a torque wrench and a torque wrench?

　　What is the difference between a torque wrench and a torque wrench?

1. Definition and function of torque wrench and torque wrench

Torque wrenches and torque wrenches are both tools used to tighten threads. The main difference between the two is the principle used.

The torque wrench is used to tighten and loosen bolts according to a given torque value. When using it, you need to set the torque value as required first, and then pull the torque wrench rod part to reach the preset torque value, then you can stop tightening. Torque wrenches are suitable for occasions that require tightening in strict accordance with requirements, such as machinery manufacturing, automobile installation, etc.

The torque wrench calculates the corresponding torque value based on the given torque value and length, thereby achieving the effect of tightening and loosening the bolt. A torque wrench can be used in a wider range of applications because it can tighten bolts as tight as possible rather than to a set torque value, taking into account the length of the bolt.

2. The difference between torque wrench and torque wrench

The differences between torque wrenches and torque wrenches are as follows:

1. Different working principles: a torque wrench tightens or loosens according to a given torque value, while a torque wrench uses the torque value to tighten or loosen;

2. Different accuracy: The accuracy of torque wrenches is usually higher, and the error of the controllable torque is within plus or minus 5%; while the accuracy of torque wrenches is lower, and the error is generally plus or minus 10%;

3. The operation methods are different: the torque wrench needs to set the torque value according to the requirements, while the torque wrench only needs to be adjusted according to the length of the bolt;

4. Prices are different: Most torque wrenches are more expensive, while torque wrenches are relatively cheaper.

3. Their respective advantages and disadvantages

1. Advantages of torque wrenches:

High precision, strong reliability and relatively simple to use;

2. Disadvantages of torque wrenches:

The price is more expensive, and different specifications of wrench heads need to be replaced for bolts of different lengths;

3. Advantages of torque wrenches:

The price is relatively cheap, has a wide range of applications, and is easy to adjust;

4. Disadvantages of torque wrenches:

The accuracy is slightly lower, and the accuracy will decrease after long-term use;

Generally speaking, torque wrenches are suitable for fields such as machinery manufacturing and automobile installation that require high torque accuracy; while torque wrenches have a wider range of applications and are suitable for daily tightening and loosening of bolts.

【in conclusion】

Although torque wrenches and torque wrenches are both tools used to tighten bolts, they use different principles and methods, and their respective scopes of application are also different. When choosing to use it, you should choose a wrench that suits you according to the specific situation.