Unleash Maximum Power: The Top 1-Inch Impact Wrenches Reviewed

Removing stubborn bolts or nuts and other maintenance jobs require high torque and precision. When you have the wrong tools in your hand, these jobs will seem insurmountable. But with the best 1-inch impact wrench, every fastening or loosening task will be a breeze.

1-inch pneumatic as well as electric impact wrenches are categorized as heavy-duty tools. They create staggering impact force and whooping torque that assist you to finish the toughest fastening jobs with ease.

All manufacturers claim that they have the best in class 1-inch impact wrench, which might confuse you. This guide focuses on removing your confusion as we extensively researched and reviewed the best 1-inch drive impact wrench for you.

Quick View of 5 Best 1-Inch Drive Impact Wrench

1-Inch Impact WrenchKey SpecificationsMore Info
Ingersoll Rand 285B-6 High Precision 1-Inch Pneumatic Impact Wrench
Ingersoll Rand 285B-6 1-Inch
Style: Pneumatic
Speed: 5250 RPM
Torque: 1475 ft.-lbs.
Weight:  27.9 lbs.
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Goplus ET1130s 1-Inch Heavy Duty Air Impact Wrench Gun Tool
Goplus ET1130s 1-Inch
Style: Pneumatic
Speed: 4200 RPM
Torque: 1900 ft.-lbs.
Weight:  40.9 lbs.
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Makita TW1000 1-Inch Impact Wrench with Friction Ring Anvil
Makita TW1000 1-Inch
Style: Electric
Speed: 1400 RPM
Torque: 738 ft.-lbs.
Weight:  18.5 lbs.
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Ingersoll Rand 2850MAX-6 1” Impact Wrench
Ingersoll Rand 2850MAX-6
Style: Pneumatic
Speed: 5500 RPM
Torque: 2100 ft.-lbs.
Weight:  21.6 lbs.
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AIRCAT 1” X 8” Super Duty Extended Impact Wrench (1994)
AIRCAT 1994 1" Super Duty
Style: Pneumatic
Speed: 4500 RPM
Torque: 2300 ft.-lbs.
Weight:  35 lbs.
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Understanding Power and Torque in 1-Inch Impact Wrenches

Knowing how much power and torque a 1-inch impact wrench has will help you choose the right one. Torque is the amount of rotational force imparted to a bolt or nut, while power is the rate at which work is being done. Simply, a 1-inch impact wrench with more power will have a larger torque output and be able to loosen or tighten nuts and bolts with less effort.

Pay close attention to the impact wrench’s maximum torque rating while searching for a 1-inch model. The stronger the wrench, the higher it’s rating. When shopping for an impact wrench, remember that strength and torque aren’t everything. Considerations beyond only cost should be given attention.

How Much Torque Does a 1-inch Impact Have?

best 1 inch impact wrenchThe amount of torque produced by air-powered 1-inch impact wrenches varies greatly between different models and brands. The greatest torque output of most 1-inch air-powered impact wrenches currently available is nonetheless between 1,500 and 2,000 lb-ft.

To give you an idea of how much power this represents, 1,500 lb-ft of torque is equal to the amount of force required to lift a 1,500-pound weight off the ground by 1 foot. For most heavy-duty tasks, such as removing vehicle lug nuts or servicing industrial gear, this amount of torque is more than adequate.

Several parameters, including air pressure and volume, socket size and type, and tool quality, can affect the torque output of a 1-inch air impact wrench. You can maximize the effectiveness and durability of your impact wrench if you purchase one from a dependable manufacturer and use it in accordance with the instructions provided.

Top-Rated Five 1-Inch Impact Wrench Reviews

We evaluated a wide range of products to make this review section. These power tools provide the necessary power so that you can accomplish a job with minimal time, labor, and effort.

1Ingersoll Rand 285B-6 High Precision 1-Inch Pneumatic Impact Wrench

Ingersoll Rand 285B-6 High Precision 1-Inch Pneumatic Impact Wrench

Highlight Features:

  • Enhanced grip design reduces operator hand fatigue
  • Low profile throttle design increases operator comfort
  • Made of durable material
  • The lube-free design eliminates oil contamination in the workplace
  • Suitable for professional use
  • Ergonomic design.
  • Comfortable grip.

We are pleased to introduce the Ingersoll Rand 285B-6 Pneumatic Impact Wrench, the industry’s finest 1-in. impact wrench. Heavy-duty impact wrench with outstanding performance and exceptional efficiency; perfect for the toughest auto and industrial jobs thanks to its industrial design.

The Ingersoll Rand 285B-6 1 Pneumatic Impact Wrench is designed to deliver professional-grade performance. It creates 1475 ft./lbs. of torque to handle wide applications of industrial and automotive tasks with the right efficiency and performance.

It consists of 2-handles, making it suitable for the tasks of pinpoint precision. The anvil size is 6”, allowing you to tackle hard-to-reach areas quite conveniently. At the same time, it helps to maintain a strong connection to the socket. Moreover, you can achieve excellent maneuverability and control due to its swift-back handle.

Additionally, accomplishing difficult underbody work will never be an issue when you have this impact wrench in your hand because additional leverage is confirmed with the top-mounted dead handle. This tool is a combo of low BPM and high inertia, permitting you to achieve the required power to complete a job.

Therefore, the Ingersoll Rand 285B-6 Pneumatic Impact Wrench is the best 1-inch impact wrench available, delivering effortless power, superb control, and long-lasting durability.

2Goplus ET1130s 1-Inch Heavy-Duty Air Impact Wrench Gun Tool

Goplus ET1130s 1-Inch Heavy Duty Air Impact Wrench Gun Tool

Highlight Features:

  • Premium quality material constructed
  • Specially treated for making it rust-proof
  • Best for commercial and domestic use
  • Easy operating process
  • Long service life span

High-strength aluminum alloy is used to manufacture the Goplus Heavy-duty 1” Air Impact Wrench, making it durable and rust-resistant. At the same time, it is strong enough to withstand high torque and heavy use. It is a valuable tool for every automotive workshop. It is appropriate for both business and domestic use thanks to its six levels of speed adjustment, which include three forward and three backward speeds.Goplus® 1

You will surely be satisfied with the functionality of this 1-inch drive pneumatic impact wrench. The generated maximum air pressure and torque are 175 PSI and 1900 ft.-lbs. respectively. Also, you can adjust the speed within 3 forward speeds and 3 reverse speeds according to your applications.

This 1-inch air pistol is effective and simple to use, and it has a labor-saving air impact design. It’s perfect for tasks that call for precise precision because of its two handles, which provide outstanding maneuverability and control. For increased versatility, it also includes a 1″ square drive. The impact wrench is exceptionally designed to give you comfort and fatigue-free operation time. It is easy to operate with an auxiliary handle.Goplus 1 inch impact wrench

This compact air impact gun set includes all required tools, such as a 1-1/2″ (38mm) and 1-5/8″ (41mm) socket, a 1/2″ NPT air inlet, and an internal hexagonal wrench that is simple to use. Upon buying the impact wrench, it comes in a blow-molded case that allows you to organize and transport the tool with ease.

3Makita TW1000 1-Inch Impact Wrench with Friction Ring Anvil

Makita TW1000 1-Inch Impact Wrench with Friction Ring Anvil

  • Torque: 738 ft.-lbs.
  • Speed: 1,400 RPM
  • Weight: 18.5 lbs.

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Highlight Features

  • It generates a powerful 738 ft.-lbs.
  • Robust gear housing protects the internal gears
  • Ball bearings ensure product longevity
  • One-hand operation with rocker-type switch
  • Rubberized grip for user’s comfort

The Makita TW100 1-inch Impact Wrench w/Friction Ring Anvil is one of the most powerful impact wrenches on the market. It is a lightweight tool and weighs only 8.6kg; you will not feel fatigued or strained in your hand while operating it.

This tool creates 1,500 impacts/minute, which is quite powerful in its class. Don’t assume that due to its powerful impacts, it generates vibration and gives you discomfort. The truth is, it uses upgraded technology to reduce vibration so that you can work comfortably. Its maximum torque capacity is 1200 ft.-lbs. making it suitable for heavy-duty projects.

It consists of a side handle that rotates 360° to ensure customer convenience. In addition, the grip is ergonomically designed and rubberized for the operator’s comfort. Overall, it has proven to be durable and works when you need it to.

4Ingersoll Rand 2850MAX-6 1” Impact Wrench

Ingersoll Rand 2850MAX-6 1” Impact Wrench

  • Torque: 2100 ft.-lbs.
  • Speed: 5,500 RPM
  • Weight: 21.6 lbs.

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Highlight Features

  • Efficient in generating 2100 ft.-lbs. of torque
  • Lightweight than other impact wrenches
  • Ensures fatigue-free operating time
  • Long-lasting performance
  • Durable housing makes it a damage-proof tool

The Ingersoll Rand 2850MAX-6 1” Impact Wrench can handle heavy-duty projects efficiently as the generated torque is 2100 ft.-lbs. You will also love to know that it offers reverse torque output of up to 2100 ft.-lbs. In fact, you will rarely find an impact wrench with this much torque output.

A worth-mentioning feature of this tool is that it is 25% less weight than the industry leaders’ impact wrenches. For this, working for long hours with this tool is so simple. More importantly, while working efficiently, it reduces fatigue in the user’s hands and arms.

Another great thing is, the housing is chemical-resistant and impact-proof. As a result, if the tool accidentally falls, no damage will happen. This is a durable tool that resists repeated drops. Every component of this tool is rigorously tested to confirm long-lasting performance.

5AIRCAT 1” X 8” Super Duty Extended Impact Wrench (1994)

AIRCAT 1” X 8” Super Duty Extended Impact Wrench (1994)

  • Torque: 2300 ft.-lbs.
  • Speed: 4,500 RPM
  • Weight: 35 lbs.

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Highlight Features

  • Entirely crafted with state-of-the-art technology
  • Heavy torque outcome
  • Outstanding precision and control
  • Exceptional “D” handle grip design
  • Stress-free air impact design

The AIRCAT 1” X 8” Super Duty Extended Impact Wrench (1994) comes with a pinless low-maintenance hammer design that provides ultimate reliability and adds hitting power. Its maximum torque is 2300 ft.-lbs. and loosening torque is 2500 ft.-lbs.

It features an extra-long reinforced extended anvil for access in good deep wheels. Also, the enlarged D-handle grip design allows its user to control the wrench smoothly and efficiently. Also, the wrench consists of easy access combined forward/reverse power management switch for your convenience.

Plus, the hammer case can be repositioned so the side handle can be mounted on either side of the tool. This 1” impact wrench is designed for professionals. So, this tool will deliver consistent, efficient performance regardless of the application type.

What to Look for in a 1 Inch Impact Wrench

As many options are available in the market, buying the best 1-inch air impact wrench is troublesome work. Many hours of research lead us to come up with a few considerations which play a vital role in buying the best one.


1″ air impact wrenches are available in 2 types: air-powered and electrical. Both types come with benefits and drawbacks; let’s look at the 2 types separately.

Air Powered

Generally, air-powered 1″ impact wrenches are heavier. They run by taking the assistance of an air compressor that is attached to them. Also, they create a lot of noise when operating. But air-powered impact wrenches generate more power than their counterparts: electrical ones.


Usually, electrical 1″ impact wrenches are easily portable due to their lightweight nature. As stated earlier, they generate less power compared to air-powered ones. They don’t create much noise and are suitable for light-duty tasks.

IPM Rating

The word “IPM” refers to Impacts Per Minute. So, what does IPM mean? The number of total hits by the hammer on the outer shaft per minute is known as IPM.

It means the tightening speed of a tool kit is determined by Impacts Per Minute. This is a must-have feature that you should look for when buying the best 1-inch impact wrench.

RPM Rating

RPM is another factor that you mustn’t compromise when buying an impact wrench. The word RPM is the short form of Rotation Per Minute that lets you determine the speed when the output shaft spins without load.

You will know the speed of pulling off a nut or installing a bolt through the RPM rating. The higher the RPM rate, the quicker you can finish the job.

Torque Generation and Impact Force

The prime responsibility of impact wrenches is to install or uninstall sockets, bolts, or nuts. They do this by generating the required amount of torque. Dislodging a lug nut will never become an easy task until the impact force defeats the friction and inertia.

In order to make sure that your selected 1-inch hydraulic impact wrench is worth the price, make sure that it has a robust torque-generating mechanism. At the same time, it must create maximum torque.

Generally, 1-inch impact wrenches are well-known for creating high power, and they are the best option for heavy-duty jobs.

Construction and Durability

Undoubtedly, repairing work requires precision. In the repairing workshops, repairing tools have to undergo stress as they constantly face heavy pressure. As a result, they can break or get damaged if not constructed with durable materials. To avoid this type of breakage issue, a 1-inch drive air impact wrench gun must feature rugged and robust build quality.

Most 1-inch air impact wrenches are housed with aluminum alloy, giving them durable construction. The best tone should be the perfect combination of power and sturdiness. Simultaneously, it has to be lightweight as well as easy to use.

Comfortable Grip

Since a 1” impact wrench is a handheld tool, fatigue, and strain may build up in the arms and shoulders when using this device for a long time. Thus, the efficiency of the task may be reduced. At the same time, the maintenance worker may make mistakes in his job.

That is why manufacturers noted this point and ergonomically designed the grip of the tool. The manufacturer designed the grip in such a way so that the handle offers comfort even when the tool is used for long hours.

Some 1-inch impact wrench handles are well-cushioned or well-padded to give comfort to the user. With these tools, users can work for long hours without fatigue or strain in hand.

Air vs Electric 1 Inch Impact Wrenches

Whether you choose an air-powered or electric 1-inch impact wrench is one of the key choices you’ll have to make. It is crucial to know the distinctions between the two types of wrenches because each has its own benefits and drawbacks.

In comparison to electric impact wrenches, air-powered ones are often more forceful and long-lasting. In addition to being easier to handle and maneuver, they are smaller and lower in weight. However, they are often noisy and expensive air compressors to run.

On the other hand, electric impact wrenches are lighter and easier to transport. They can be used in areas with limited or no access to electricity because an air compressor is not necessary. However, they typically aren’t as powerful as air-powered ones and could not hold up as well over time.

The choice between an air and electric 1-inch impact wrench depends on the user’s preferences and working conditions. An air-powered wrench is your best bet for optimum strength and longevity. Consider going with an electric version instead if mobility and ease of use are priorities.

How to Maintain Your 1-inch Impact Wrench

Take good care of your 1-inch impact wrench if you want to get the most out of it. How to keep your impact wrench in good working order:

  1. Clean it regularly – Maintaining a clean impact wrench is as simple as wiping it down with a damp towel after each use. This will preserve the tool in good working order and avoid harm to it.
  2. Lubricate moving parts – The ratchet mechanism and hammer assembly of your impact wrench will run more smoothly if you add a few drops of lubricating oil to them. This will reduce the likelihood of damage to the tool and prolong its useful life.
  3. Check the air filter – If you have an air-powered impact wrench, you should frequently inspect the air filter and clean or replace it as needed. Power and efficiency are both diminished when the air filter is blocked.
  4. Store it properly – When not in use, keep your impact wrench in a clean, dry location. Maintain a dry, dust-free environment to prolong the life of the tool.


An impact wrench of what size, exactly?
In order to snug or loosen bolts and nuts in industrial settings, a 1-inch impact wrench is employed. It’s perfect for jobs that call for a lot of force because of the rotary hammer mechanism it employs.

Power vs. torque: what does it mean when talking about a 1-in. impact wrench?
Torque is the amount of force given to a bolt or nut in a rotational direction, while power is the rate at which work is done. A 1-inch impact wrench with a high torque output can loosen or tighten nuts and bolts quickly and easily.

What are the benefits of utilizing a 1-inch impact wrench powered by compressed air?
In general, 1 in. impact wrenches propelled by air are more robust and effective than their electric counterparts. They are also easier to handle and move because of their reduced weight and size. However, they are noisy and expensive to run because they need an air compressor.

When using an electric 1-inch impact wrench, what are the benefits?
Electric 1-in. impact wrenches are lighter and more portable than their air-powered counterparts. Because they don’t need an air compressor, they can be used everywhere, even in places where there is no access to electricity. They aren’t as powerful or long-lasting as their air-powered counterparts, though.

To what extent should I oil my 1-inch impact wrench?
Maintaining a 1-inch impact wrench entails routine cleaning, lubricating moving parts, inspecting the air filter (if present), and safe storage. The longevity and efficiency of your tool depend on your attention to these maintenance details.

Final Words

Power tools are engineered to make user’s life easier. They are an extra hand of a mechanic. From job shops to maintenance workshops, the best 1-inch impact wrench offers several benefits. They are inexpensive. Also, they save valuable time, money, and effort. Overall, they are responsible for making the user’s life easier by providing the required torque to remove or install nuts, screws, bolts, etc.

However, whatever tool you choose, it is significantly vital to look at the features carefully. You mustn’t compromise on the product quality.