Impact wrenches, from pneumatic to air or electric, have different names and types for different applications. An impact wrench comes in handy whenever you want drill-like torque or impact force, like in riveting machines. It helps with the high-level torque needed to loosen or tighten bolts and fasteners. When looking for the best impact wrench for your requirements, you need to be aware of its types, their suitability, pros and cons. This information will help you find the best model for your purpose and ensure the right investment.
Read this article and then check out our Tools Warehouse website to shop for the best impact wrenches.
Types of Impact Wrenches
The different types of impact wrenches are based on their power source, size, and application, which is why they are categorized as follows:
1. Pneumatic (Air-Powered) Impact Wrenches
A pneumatic impact wrench gets its power from compressed air supplied through an air compressor. It’s widely used in professional shops because it delivers high torque output, consistent performance, and durability. It usually uses a drive size of ½, 1½, and ¾.
Since it uses an air compressor, it offers steady power but also limited portability. If you use larger drives, it can generate up to 3000 ft/lbs of torque. An air impact wrench uses numerous hammering mechanisms, including:
➢ Efficient high torque with twin hammers
➢ Jumbo hammers for extreme power on heavy-duty jobs
➢ Two-hammer designs for general purpose use
➢ Pinless hammer that gives better durability in harsher environments with fewer moving parts
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Pros of Air Impact Wrenches |
Cons of Air Impact Wrenches |
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● High power output with consistent performance. ● Lightweight as they don’t require built-in motors or batteries. ● Reliable for extended use in workshops and garages. ● Less heat buildup compared to electric models. |
➔ Requires an air compressor, adding to initial costs. ➔ Limited mobility due to the need for an air hose. ➔ Not ideal for remote or outdoor jobs unless an air supply is available. |
2. Corded Electric Impact Wrenches
These wrenches are plugged into an electrical socket for consistent power. You need an extension cord to plug the corded electric impact wrench in and turn it on. These work perfectly in a setting where you have a continuous power supply and your work is lengthy. However, it’s getting rarer because the cordless models are taking over with their portability and convenience.
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Pros of Corded Electric Impact Wrenches |
Cons of Corded Electric Impact Wrenches |
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● Unlimited runtime as long as a power source is available. ● No need for an air compressor. ● Generally more affordable than pneumatic and cordless models. ● Provides steady torque without power fluctuations. |
➔ Mobility is restricted due to the power cord. ➔ Not suitable for outdoor work where electricity may not be accessible. ➔ Can be heavier than air-powered models. |
3. Cordless (Battery-Powered) Impact Wrenches
When you’re working on remote or on-site tasks, you can rely on this rechargeable and portable option. A cordless impact wrench gives the utmost flexibility and mobility because it doesn’t require an external source of power.
The most common rechargeable batteries in this model include Nickel Meta Hydride (NiMH), Lithium Ion (Li-Ion), and Nickel Cadmium (NiCad). They can range from 18 to 28 volts and come in different models, sizes, and price points.
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Pros of Cordless Impact Wrenches |
Cons of Cordless Impact Wrenches |
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● Maximum portability—can be used anywhere without cords or air hoses. ● Battery technology has improved, providing longer runtimes and higher torque. ● Great for mobile mechanics and on-site repairs. ● Various voltage options, typically ranging from 12V to 24V or more, for different power levels. |
➔ Batteries add weight, making them heavier than pneumatic models. ➔ Limited runtime before recharging is required. ➔ High-power models can be expensive. |
4. Hydraulic Impact Wrenches
For heavy-duty industrial applications, hydraulic impact wrenches are helpful. They generate extremely high torque using hydraulic fluid and have a high power-to-weight ratio. These wrenches have an adjustable impact intensity and a torque that ranges from 500 to 2500 ft/lbs. Since it’s expensive and bulky, it’s not for everyday use.
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Pros of Hydraulic Impact Wrenches |
Cons of Hydraulic Impact Wrenches |
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● Delivers extremely high torque levels. ● Suitable for industrial and heavy machinery applications. ● More reliable and durable for high-load tasks. ● Can operate in hazardous environments where electricity and air supply are impractical. |
➔ Requires a hydraulic pump system. ➔ Expensive and not practical for general-purpose use. ➔ Less portable due to hydraulic lines and additional equipment. |
5. Manual Impact Wrenches (Handheld Impact Drivers)
These wrenches are hand-operated and use physical force. You often strike it with a hammer for impact torque. It’s better if you use it for occasional tasks.
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Pros of Manual Impact Wrenches |
Cons of Manual Impact Wrenches |
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● Simple and inexpensive. ● No need for electricity, batteries, or air compressors. ● Useful for small-scale DIY tasks and minor automotive repairs. |
➔ Limited power output. ➔ Requires physical exertion to generate impact force. ➔ Not suitable for heavy-duty applications. |
Check Out: Wrenches Explained: Types & Their Specific Applications
Which Type of Impact Wrench will you Choose?
Based on all the above types, you must have gotten a fair idea of the different types of impact wrenches. Now, the decision is yours– which type of impact wrench will you choose based on the applications, pros and cons of each? From sheer power to convenience, consistent power, and much more, you can improve efficiency and productivity with a suitable type.
With enough information in hand, we call you to browse our extensive Tools Warehouse impact wrench collection. Shop today!