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The 2024 Complete Impact Wrench Guide For the New Buyers

The 2024 Complete Impact Wrench Guide For the New Buyers

Welcome to the JPT comprehensive guide to impact wrenches, 2024, essential for professionals and do-it-yourselfers alike. For you to select and use an impact wrench with assurance and speed, we've covered all you need to know about them in this post. Now, let's read this.

What Is an Impact Wrench?

An impact wrench, also known as an impact gun or torque gun, is a power tools mainly used for quickly and effectively tightening or loosening bolts and nuts. Though it has a history that goes back to the early 20th century, the present versions—especially the ones from 2024—are far more advanced, possessing strong, portable, and adaptable qualities.

How an Impact Wrench Works

An impact wrench produces much torque with minimal effort on the operator's part. An internal hammering mechanism achieves this with a sudden and strong twisting movement. A hammer, an electric or air motor, and an anvil are the three main components of the wrench.

The hammer smashes the anvil repeatedly once the trigger is pulled, spinning the hammer. Bolts may be effectively tightened or loosened by the strong torque this operation creates, which is passed to the socket.

The Impact Wrench Types

Cordless Impact Wrenches:

  • Power Source: These cordless impact wrench run on batteries, which makes them portable.
  • Applications: Perfect in situations where access to power sources is restricted, and mobility is essential.
  • Benefits: This allows greater freedom of movement and is lighter and more compact than other wrench types.
  • Limitations: Compared to other wrenches, their power output may be lower due to battery strength and longevity variations.

Electric Impact Wrenches:

  • Power Source: These electric impact wrench powered by electricity and must be plugged into a power outlet.
  • Applications: Suitable for stationary work environments like garages or workshops where power is readily available.
  • Advantages: Generally provides more consistent power output and higher torque than a cordless impact wrench.
  • Limitations: Mobility is restricted by the length of the cord and the need for a nearby electrical outlet.

Compressed Air / Pneumatic Impact Wrenches:

  • Power Source: These compressed air / pneumatic impact wrench are powered by compressed air and require an air compressor.
  • Applications: Common in professional automotive shops and industrial settings.
  • Advantages: Typically provide the highest torque output and are very durable. They are often lighter than electric models since they don't have a heavy motor.
  • Limitations: Require access to an air compressor, which limits mobility. The air hose also adds another point of consideration for workspace setup.

Each type of impact wrench has benefits and drawbacks, making them suitable for different working conditions and tasks. The choice between these types depends on the specific requirements of the job, like the need for mobility, available power sources, and the torque required.

Factors to Consider When Selecting an Impact Wrench

Drive Size

The drive size is one important factor when buying an impact wrench.

The following sizes of impact wrenches are available: 1/4 inch, 3/8 inch, 1/2 inch, 3/4 inch, or 1 inch.

The most petite sizes, which are 1/4 and 3/8 inches, are the best for work where accuracy and precision are essential, and they are also perfect for working in cramped areas.

As these wrenches work well for most purposes, the 1/2 inch is the most common size when working with regular-sized automobiles; the 1/2 inch will give sufficient power and accuracy.

The 3/4 or 1-inch diameter impact wrench are the strongest and frequently utilized in large-scale tires and other industrial settings.


Torque is the second most crucial factor when choosing an air impact wrench.

When an impact wrench is used with a higher torque than is necessary, it can overtighten nuts and bolts, which can cause severe damage. At the same time, insufficient torque can lead to under-tightening, increasing the risk of a wheel nut falling free while the automobile moves.

Then what types of torque are required for application? JPT advises consulting the component's box or manufacturer's handbook when you need more clarity about what to do.

For perfect precision, it is advised to use a manual torque wrench to verify the nut before using an impact wrench or other comparable impact instrument.


If you plan to use the air tool over long periods, selecting a well-balanced tool that is comfortable and lightweight enough to hold several hours is essential.


Choosing a lower noise power tool is recommended if you want to use it for a longer period. Because continuous exposure to loud noises can permanently harm your hearing. When exposed to noise levels more than 85 dBa, wearing hearing protection is required.


Selecting a lower vibration level power tools is best for your safety and comfort if you want it to be used regularly for a longer period. Repeated contact with hand-arm vibration can have negative impacts on long-term health.


To sum up, this comprehensive 2024 from JPT on impact wrenches gives you the information to select the best one for your needs. As each impact wrench type has its unique features, benefits and limits and it is important to understand them all.

When purchasing an impact wrench, take a look at the drive size, torque, weight, vibration, and sound levels. As these all elements affect the power tool's functionality, comfort, and security.

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