Best 3/8 Air Impact Wrench

By Richard S. Clark | Last Updated: September 9, 2022

An impact wrench is one of the most important tools any mechanic should have. This power tool can fit sockets of different sizes to quickly loosen and tighten lug nuts, which are found on wheels and other heavy machinery. Find the best 3/8 impact wrench to speed up your work and avoid overtightened nuts that can cause problems down the road. It’s also essential to make sure you have an impact wrench that can do the job safely and not break down.

The market is full of reliable 3/8 impact wrenches, and finding one may not be as easy as you think it is. We have picked five impact wrenches that we believe can provide a good job and even experts can depend on. Each product is reviewed according to its features and pros and cons.

How to Adjust Torque on Air Impact Wrench

Attachments can be used to change the torque on an impact wrench. Torque sticks are the most popular and least expensive method, and they can precisely control the end torque. Dynamic torque limiters, which are exceedingly complex but incredibly precise, can also be used. The output torque of some air impact wrenches can be regulated with air regulators. You may alter the output torque in various ways, depending on your needs, and I’ll go over each one in-depth. But first, let’s look at why an impact wrench doesn’t have torque control.

Top Six 3/8 Impact Wrench Products in 2022

1. Ingersoll IQV20 Rand W5133-K22

Ingersoll Rand W5133-K22 3/8" IQV20 Cordless Air Impact Wrench and Battery Kit with Brushless Motor, 360 Degree LED Light, 365 ft-lbs Max Torque, 4 Power Modes, Gray

Ingersoll Rand has been at the cutting edge of industrial innovation for more than 100 years, and they are still going strong. The company makes sure its products have the best quality, reliability, performance, and durability. They make power tools, air compressor systems, and more. Its air impact wrench is one of the best impact wrenches on the market today, and below are the reasons why.

Four Power Modes and Light Settings

Ingersoll Rand IQV20 impact wrench has four modes – hand tight, mid-power, max power, and wrench tight. It also comes with a 360° LED light ring that doesn’t have any shadows and can be dimmed by choosing any of the four settings.

Brushless Motor

With 550 ft.-lbs. of nut-busting torque and 365 ft.-lbs of MAX torque at 5.3 lbs. this tool has a high power-to-weight ratio, making it easy to get the job done (with a BL2022 battery). Mechanics can get the power they need from the all-metal drive train and hammer mechanism, but they don’t have to add extra weight.


It is very durable as it is protected by a steel-reinforced frame and a housing with a chemical-resistant composite. The W5153 & W5133 are designed to withstand the possible repeated drops on the hard surface and exposure to harmful fluids. The IQ technology that doesn’t use sparks and the reinforced bushing make for a longer-lasting motor that you can trust.


  • Compatible with the IQV20 range of batteries.
  • Impressive four-mode power control.
  • Variable speed switch.
  • Impact and chemical resistant housing.
  • Better motor output.


  • Some may find it heavy.

2. Ingersoll Rand Air Impact Wrench Drive 2115TiMAX

Ingersoll Rand 2115TiMAX 38” Drive Air Impact Wrench –Powerful Reverse Torque Output Up to 1,350 ftbs, 7 Vane Motor, Light Touch Trigger, Max Control, Gray

An impact wrench made by Ingersoll Rand called the 2115TiMAX is a tool that can be used for many different things. This wrench can handle anything with its composite housing and titanium hammer case, even if it falls over a lot. Many industries use 2115QTiMAX, like body shops and general industrial use. It’s also suitable for rail transportation, heavy machinery, oil and gas, construction, and shipbuilding.

Twin Hammer Mechanism

It has a twin hammer mechanism that provides a forward torque range of 25 to 230 ft/lbs and a 300 ft/lbs reverse torque range. This is more than enough torque for mechanics and engineers to get rusty nuts and bolts out of cars and other things. If you’re concerned about how easy it will be to use, this is the tool for you.

4 Position Power Regulator Dial

To regulate the speed of the wrench, it has a feather touch trigger and a 4-position power regulator dial. This tool output is 15,000 RPM of free speed, which makes this one of the fastest 3/8 inches impact wrenches in this review.

Great Control

It has a feather touch trigger and a wider range of power regulator settings when it’s in the forward position, but it always has full power when it’s in the reverse position. You can change direction with a simple push of a button.


  • Last longer because of its twin-hammer mechanism.
  • Impressive forward and reverse torque range.
  • Lightweight and easy to carry.
  • With lightweight and durable titanium hammer case.
  • Easy to regulate speed.


  • Has some issues with the snap-on clip.

3. Ingersoll Rand Air Impact Wrench 2115QXPA

Ingersoll Rand 2115QXPA 38 Drive Air Impact Wrench, Quiet Technology, 300 ft-lbs Max Torque Output, 15,000 RPM, Lightweight, Black

The Ingersoll Rand Impact Wrench 2115QXPA 3/8” Drive has a lot of power and performance for a price that won’t break your bank account. This is the best-tuned and best-built impact wrench you’ll ever need for the most difficult jobs. At 2.5 pounds, the 2115QXPA is as powerful as it is light, so your hand doesn’t get tired as quickly. This lets you get more work done.

Operates Quietly with Optimum Performance

You can get a lot of power and performance for your money with the IR 2115QXPA Air Impact Wrench at a price that won’t hurt your bank account. This engine can achieve up to 300 ft/lbs of torque and 15,000 high-speed RPMs. It’s also very quiet.

Feather Touch Trigger

Controlling the tool is not a problem at all. The feather touch trigger lets you control the device’s speed so that you can get the best results on small jobs. Make sure you don’t overtighten your bolts by turning down the power regulator so that you don’t cause damage by overdoing it.

Patented Quiet Tool Technology

Patented Quiet Tool technology cuts noise levels without sacrificing power. It’s small and light, so it doesn’t make your hands tired so that you can work harder and faster. The steel-lined hammer case and the chemical-resistant housing protect the tool from bad weather. Every part, mechanism, and function has been thoroughly tested to ensure it will work for a long time.


  • The speed is powerful enough to remove even the most rusted bolts or nuts.
  • Accurate tool control.
  • Very light which is unusual for a powerful tool.
  • Includes a protected chemical-resistant hammer case.
  • Operates quietly.


  • Since this is hand-powered, it might drain your energy easily.

4. Ingersoll Rand Air Impact Wrench 15QMAX

Ingersoll Rand 15QMAX 38” Drive Air Impact Wrench, Ultra Compact, Quiet Technology, Torque Output Up to 380 ft lbs, Lightweight 2.4 lbs, Stubby 4.6...

Ingersoll Rand has been making tools for 100 years, so you can always trust the 15QMAX. An impact wrench with Ingersoll Rand’s Quiet Technology has been tested and pushed to the limit to ensure that it lasts twice as long as the competition. This way, you can get actual work done over and over.

Light Air Impact with Patented Quiet Technology

Many air impact wrenches are heavy, but the 15QMAX is one of the lightest on the market. It has a torque output of up to 380 feet pounds. A patented technology called Quiet Tool Technology by Ingersoll Rand cuts noise levels without sacrificing the best power performance of any brand in the world.

Twin Hammer Mechanism

Dual hammers are used to make it work. It can make up to 475 ft/lbs of breakaway torque and up to 380 ft/lbs of max torque. This tool is based on the IR Impact Wrench, and it has been shown to last twice as long as other tools. Every part, function, and mechanism has been thoroughly tested to make sure it will work for a long time.

Can Easily Access any Position

The tool has a stubby 4.6-inch length and a small, lightweight design that makes it easy to get up, under, over, or around any challenging job. Even if you run an auto shop or a construction site, you can trust the 15QMAX Impact Wrench to do its job well in even the most difficult situations.


  • Easy to carry.
  • Ideal if you are dealing in small areas.
  • Best for hard-to-remove nuts and bolts.
  • Very convenient to use.
  • It operates quietly because of its “Quiet Tool Technology.”


  • Made in China

5. Ingersoll Rand 212

Ingersoll Rand 212 3/8” Drive Air Impact Wrench, Super Duty, 180 Max Torque Output, 13000 RPM, New 7 Vane Motor, Built-In Power Regulator

This wrench is a favorite of professional mechanics because it has a lot of power and lasts a long time. It is used for exhaust systems, radiators, air conditioning, bench work, and body shops. You can remove and replace bolts up to 7/16 inches without having to fight with this 3/8 inch pistol grip. It has all of the benefits of the single hammer impact mechanism, so you don’t have to fight with it.

Easy to Control       

The powerful 3/8″ pistol grip has all of the benefits of the single hammer impact mechanism, but because the tool is so small, it can get into places that other tools can’t. It can remove and replace bolts up to 7/16 inches without any trouble. A new seven-vane motor gives even more power, and a feather-touch trigger gives you much control.

Built-In Power Regulator

It has a built-in power regulator to help you control the torque, a jumbo hammer impact mechanism, a pressure-fed lubrication system, and a handle exhaust port. When there is a built-in power regulator, it makes sure that there isn’t too much torque.

Provides More Torque with Less Vibration

It has a maximum torque of 180 ft/lbs and a maximum reverse torque of 150 ft/lbs. Even when the air pressure changes, it still has the same amount of torque.


  • Provides enough torque.
  • Lightweight.
  • It can be used in a lot of ways.
  • Compact enough and easy to carry.
  • Less noise and vibration are emitted.


  • Uncomfortable feeling on the switch when changing direction.
  • Not for car repair.

What to Look for When Buying The Best 3/8 Impact Wrench

Here are some of the factors you need to consider when buying the best 3/8 air impact wrench:

Easy to Adjust

The ability to fine-tune a setting is essential for determining whether the appropriate one has been selected. When you have an air impact wrench with an adjustable design, you can perform a custom operation with it. The torque mode can usually be changed with a flip of the lever. You’ll be able to apply the correct torque and avoid any kind of damage as a result.

Hammer Mechanism

When it comes to transferring torque, hammering is an excellent method to use. The design of the hammer will ensure that less torque is required. Dual-hammer air impact wrenches are another option. It can strike both sides of the anvil at once, resulting in increased torque force. You’ll be able to find a vane-shaped one.

Size of the Drive

The size of the drive determines the amount of bolt and nut handling capacity. A 1/2-inch drive is standard on most air impact wrenches. It can handle nuts and bolts with up to 90% of their diameter. In addition, a 1/2-inch drive can be used in a wide range of automobiles. However, drive sizes as small as 1/4-inch and 3/8-inch are available.

Size of Socket

There are two basic types of socket size and shape. It has both a hammer and an anvil and is commonly known as a pistol wrench. In addition, inline wrenches that resemble a large screwdriver are available. The hammer and anvil are both included in an inline wrench tool. Any type of bolt or nut can be easily accommodated in its ample storage area. Socket tools come in a variety of sizes, as well.


The weight of the air impact wrench is an important consideration if you want a stress-free operation. It’s an essential feature for making the tool easier to transport. In addition, look for a model with the ideal ratio of power to weight. You won’t have to worry about getting tired because of the design’s lightweight nature. You must not, however, sacrifice durability. Aluminum is a durable and light material.


The handle should be ergonomically designed and more comfortable to hold. You will be able to use an air impact wrench with ease if it has a secure grip. Some have a bottom handle exhaust that is great for protecting the surface underneath. Controls will be intuitive and straightforward, thanks to the inclusion of an integrated regulator. In addition, it should be more comfortable, with less vibration.

Amount of Noise

For many people, noise is a major source of irritation. You must check to see if it has a quiet operation to avoid unwanted noise. As a result, there will be no need for hearing protection devices. Environmentally friendly products should be your first choice.


Compressed air is used to power air impact wrenches. This is a common tool with a built-in air tank in most car repair shops. In comparison to electric designs, compressed air is more powerful. Furthermore, you should check to see if it has adjustable power levels.


When purchasing an air impact wrench, quality and durability are critical considerations. It reduces the frequency with which the tool must be purchased. You’ll need to look at the quality of the construction to determine this. If you want to use it for professional or DIY purposes, it must have advanced construction. You should also check to see if there is a warranty included. When a company is confident in the quality of its product, it will offer a warranty.

Benefits of Using an Air Impact Wrench

Below are the detailed benefits of using an air impact wrench:


Unlike electric-powered tools, air-powered ones require air compressors to operate. As a result, air tools are significantly lighter because they don’t have to be attached to a large motor. When you’re using the tools for a long period of time, this is especially important.

Low Cost

Because the air impact wrench has less moving parts, it does not cost that much. It only means that the tool requires less maintenance or repair. Because of less maintenance, the downtime is also reduced. You can complete the job faster, more productive, and thus reduce costs. And since it consumes less energy, you save a lot on energy.


Compared to electrical tools, air tools are safer as you can use them even in areas with conductive materials, flammable substances, moisture, and even explosives. These types of environments are dangerous, mainly if you use tools that require electricity.


Air tools may be used in any setting and readily transported to where they are needed. Because compressed air can be stored in cylinders and transported to any worksite, it is a versatile power source. As a result, even if there is no access to electricity or a sufficient power source, these air tools can be used in remote areas.

Increased Productivity

Air tools have a high power-to-weight ratio, allowing them to deliver more horsepower while being lightweight and compact. Only 50 to 60% of the power delivered to the motors is converted to output power in electric tools. Electric tools become less productive and powerful as a result of this.

How to Use Air Impact Wrench

Steps on using an air impact wrench:

  • Step #1 – Assembling the wrench. Take the air hose and connect it to the air impact wrench’s end. Then attach the other end to the air pressure unit.
  • Step #2 – Check if it can release your needed air pressure. So you need to do some tests. In testing, take a compressor and set the limit between 90 to 100 PSI (Pounds Square Inch). Press the switch to check if it can release the pressure needed. You also need to test the direction by touching the switch lightly and taking note of the turning. Use the latch or knob to reverse the socket’s direction.
  • Step #3 – Apply the correct speed when loosening or tightening the lug nut, frozen or rusted fastener, and lug nut. Check if the air impact wrench provides enough torque. Attach the socket to your tool. Take and slightly slip it into your vehicle’s wheel nut.

Frequently Asked Questions – (FAQ)

What is an air impact wrench?

An impact wrench is a socket wrench power tool that stores energy in a rotating mass before transferring it rapidly to the output shaft, resulting in great torque output with low user effort.

How much torque does an air impact wrench have?

An impact driver with 1500–1800 in-lbs of torque, for example, places a greater focus on higher RPM. It will complete 95% of the work faster than a tool with higher torque and slower speeds.

How does an air impact wrench work?

With an impact wrench, a swift and powerful twisting motion is applied to the obstinate lug nut by using an electric or air motor (every five seconds or so).  The constant brief, powerful bursts of force attempting to twist on the fastener eventually result in movement (tightening or loosening).

What’s the best air compressor for a 3/8 air impact wrench?

The best air compressor for 3/8 inches impact wrench is the one with 2.5 to 3.5 CFM at 90 Psi.

How are 3/8 air impact wrenches and 3/8 cordless impact wrenches different?

In most circumstances, an impact wrench provides more power (torque) than an impact driver. However, some impact drivers in the 18V/20V max class, particularly 12V platforms, offer more power than tiny impact wrenches.

What kind of air impact wrench is right for me?

To determine what kind of air impact wrench is right for you, take note of the following:
·         Familiarize yourself with the mechanics.
·         Examine your specifications.
·         Examine the tool’s design in greater detail.
·         Check the materials.
·         Check if it can provide the torque level needed.
·         Examine the bolt size.
·         Ergonomics, sound, and vibration should not be overlooked.
·         Give it a shot.

What size of air compressor do you need?

The best way to figure out what size home air compressor you’ll need is to total up the CFM requirements for all of the items you’ll be using and the peak PSI each one requires. This determines the maximum tank size in gallons, pressure in PSI, and capacity in CFM you’ll need.


Ingersoll Rand is one of the top manufacturers of impact tools in the business. There are some of the best 3/8 impact wrenches you can buy. They have been making them for a long time.

This company’s products meet or exceed industry standards for safety and quality. The 5 Ingersoll Rand impact wrench models above are great, but you need to get one right for the job you want to do. Besides the drive size and torque, you should also think about how big and heavy it is as well as how easy it is to move.

We recommend Ingersoll Rand Air Impact Wrench 2115QXPA 3/8″ Drive as it provides powerful torque you might need for rusted and hard-to-remove nuts and bolts. It also possesses the features other Ingersoll air impact wrench to have. However, this guide will help you choose the best Ingersoll Rand impact wrench. If you want to share your experience while using the tool, you can comment below.

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