
Cordless impact wrenches are a great addition to any mechanic's toolbox. They are used to put in and take out lug nuts, screws, bolts, and other parts on cars, bikes, boats, aircrafts, and anything else automotive. They are especially useful for removing rusty bolts that refuse to budge.
The best cordless impact wrenches on the market include the DeWalt DCF899HB 20V Impact Wrench, the Milwaukee 2767-20 High Torque Impact Wrench, the Makita XWT08Z LXT High Torque Drive Impact Wrench, and the DeWalt DCF890B Cordless Impact Wrench. These tools offer high torque, long battery life, and compact designs, making them ideal for a variety of automotive and mechanical tasks.
When choosing a cordless impact wrench, consider the power, size, weight, and speed of the tool, as well as the quality of the battery and motor. Look for a brushless motor, which tends to be more powerful and durable than brushed motors. Additionally, opt for a lithium-ion battery, which holds more charge and delivers power more steadily than older battery types.
By investing in a high-quality cordless impact wrench, mechanics and DIY enthusiasts alike can make their projects easier, faster, and more efficient.
Characteristics | Values |
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Brand | Milwaukee, DeWalt, Makita, Ingersoll Rand, Ryobi, Bosch, Flex, Porter-Cable, Black & Decker, Neiko, Dobetter, Aircat, Eneacro |
Model | M18 Fuel, 2763-22 M18, 2767-20 M18 Fuel, 2767-21 M18 Fuel, M12 Fuel, M18 Fuel 3/8-In. Mid-Torque, M18 Fuel, 20V Max XR, DCF899M1, DCF890B, DCF889HB, DCF883M2, DCF899HB, DCF850, 24V Quick Eject, XWT08Z LXT, XWT11Z, XWT11T, 20V Max XR, 20V Max Li-Ion, 20V Max XR, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V Max, 20V 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Torque, RPM and IPM
When it comes to 18V cordless impact wrenches, torque, RPM, and IPM are key specifications to consider when making a purchase.
Torque
Torque is a measure of the tool's ability to drive in lag bolts or loosen stubborn nuts, and it is the most important representation of power for an impact wrench. The higher the torque, the more power the impact wrench has. Most cordless impact wrenches can produce torque outputs of over 250 foot-pounds, with sub-compact models starting at 225 foot-pounds and the most powerful wrenches reaching 1,500 foot-pounds of torque.
RPM (Revolutions Per Minute)
RPM refers to the speed at which the impact wrench is operating. High RPM helps to drive nuts or bolts faster. As RPM increases, so do IPM (Impacts Per Minute).
IPM (Impacts Per Minute)
IPM refers to the number of impacts or blows delivered by the impact wrench per minute. As resistance increases, a higher IPM will produce a faster rate of impacts, thus transferring more torque to the drive head.
When choosing an 18V cordless impact wrench, it is important to consider the torque, RPM, and IPM specifications to ensure the tool has sufficient power and speed for your intended applications.
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Battery voltage and Ah
When it comes to cordless impact wrenches, the battery voltage and Ah (amp hours) are important factors to consider. Amp hours refer to the number of amps that the battery can discharge continuously for an hour, and it gives an indication of the battery's capacity and how long it will last. A higher Ah value means the battery will have a longer charge and be able to power the wrench for a longer duration.
In terms of voltage, 18V tools with advanced features are generally more versatile and easier to use. While 12-volt impact wrenches are more compact and suitable for smaller jobs or working in tight spaces, 18V and 20V tools have less difference between them in terms of performance. So, if you're looking for a balance between power and versatility, an 18V cordless impact wrench is a good option.
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Size and weight
When it comes to size and weight, there are a few things to consider when comparing 18V cordless impact wrenches. Firstly, the weight of the wrench can vary depending on the brand and model. Some wrenches are designed to be more compact and lightweight, making them easier to manoeuvre in tight spaces and reducing fatigue during prolonged use. Other wrenches may be heavier due to larger batteries or more powerful motors. It's important to strike a balance between power and weight to ensure the wrench is comfortable to use and can access the areas you need to work on.
The head length and overall length of the wrench can also vary. A longer wrench may provide more torque and power, but it might not fit into smaller spaces. A shorter wrench will be more compact and versatile but may have lower torque specs. Some wrenches have adjustable speed settings that allow you to control the torque and speed, making them more versatile for different tasks.
The weight distribution of the wrench is another important factor. A well-balanced wrench will feel lighter and be easier to handle, even if it has a heavier weight. The design of the handle and grip can also affect the overall weight distribution and comfort of the wrench. Some wrenches have ergonomic handles that reduce vibration and fatigue during extended use.
In terms of size and weight, it's important to consider the type of work you'll be doing and the spaces you'll be working in. If you need to access tight or confined areas, a smaller and lighter wrench might be the best option. If you're mainly working in open spaces and prioritising power, a larger and heavier wrench may be more suitable. Additionally, the weight of the wrench can be affected by the type of battery it uses, with some batteries being heavier than others.
When comparing 18V cordless impact wrenches, be sure to consider the weight and dimensions of the wrench, as well as the weight distribution and handle design. These factors will impact the comfort, manoeuvrability, and versatility of the wrench during use.
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Motor type
The motor type of a cordless impact wrench is an important consideration when making a purchase. There are two main types of motors used in cordless impact wrenches: brushed and brushless. Here are some key points about each type:
Brushed Motors:
- Brushed motors have physical "brushes" that deliver power to the motor and perform switching functions.
- These brushes are wearing parts that come into direct contact with the spinning commutator of the tool, leading to wear and tear over time.
- Brushed motors are generally less powerful and efficient compared to brushless motors due to the friction caused by moving parts.
- Tools with brushed motors are usually more affordable.
- Brushed motors were commonly used in power tools until the introduction of brushless motors, and they can still get the job done for most applications.
Brushless Motors:
- Brushless motors use electronic switching and have no physical wearing parts besides bearings.
- They offer higher power, longevity, and battery life compared to brushed motors due to reduced friction.
- Brushless motors have a greater power-to-weight ratio, higher motor speeds, and require less maintenance.
- The advanced technology of brushless motors makes them more expensive.
- Brushless motors are becoming more common as battery technology improves, and they are now the preferred choice for many professionals.
When choosing between brushed and brushless motors, consider your budget and the intended use of the tool. Brushed motors are sufficient for occasional DIY projects, while brushless motors are ideal for heavy-duty or professional use due to their increased performance and durability.
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Price
The price of an 18V cordless impact wrench varies depending on the brand, features, and power of the tool. Here is a breakdown of the prices of some popular 18V cordless impact wrenches:
DeWalt 20V MAX XR
The DeWalt 20V MAX XR is a powerful and durable impact wrench that can deliver a maximum breakaway torque of 1,200 feet/pounds. It features a three-speed selector and an LED work light. The price of this tool is on the higher end, but it is known for its quality and performance.
Milwaukee M18 Fuel
The Milwaukee M18 Fuel is a highly compact 18V cordless impact wrench that offers an impressive amount of power. It provides up to 1,000 feet/pounds of torque and has a bolt removal mode for improved control. The price of this tool is premium, reflecting its high-end features and performance.
Makita XWT08Z 18V LXT
The Makita XWT08Z 18V LXT is a powerful and versatile impact wrench that can deliver up to 740 feet/pounds of fastening torque. It has three-speed settings and a brushless motor, providing longer runtime and improved control. The price of this tool is higher compared to some other options, but it offers a good balance of power and performance.
Milwaukee 2767-22 M18 Fuel Kit
The Milwaukee 2767-22 M18 Fuel Kit is an all-purpose impact wrench that can deliver up to 1,000 feet/pounds of torque. It features a dial mode switch and a quick-disconnect socket system. The kit includes two XC 5.0 batteries and a rapid charger. The price of this tool is on the higher end, reflecting its power and versatility.
Makita XWT11T 18V LXT
The Makita XWT11T 18V LXT is a smaller and lighter impact wrench that is ideal for tight spaces and light to medium-duty applications. It offers up to 210 feet/pounds of torque and has three-speed settings. The price of this tool is more affordable compared to the higher-end options, making it a good choice for those who need a compact and lightweight tool.
DeWalt DCF889M2 20V MAX
The DeWalt DCF889M2 20V MAX is a popular and versatile impact wrench kit. It delivers up to 700 feet/pounds of torque and features an electric brake and an all-metal transmission. The kit includes two XR lithium-ion batteries. The price of this tool is slightly lower than some other options, making it a good choice for those who need a balance of power and affordability.
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Frequently asked questions
A cordless impact wrench is a power tool that draws its power from a battery. This means it has the power to tackle tough jobs with the added benefit of being mobile.
A standard drill rotates the bit, whereas an impact driver uses a rotating mass to deliver extra power in the form of torque.
No, a hammer drill would be better for this purpose.
Yes, if the impact wrench can generate 100 lb/ft of torque, it should be able to remove a lug nut. However, if the lug nut is frozen, stuck, or rusted, more torque will be needed.
Variable trigger speed means that the speed and power of the tool can be adjusted by the force applied to the trigger.
Torque is the sheer power that the wrench can put out. RPM stands for Revolutions per Minute and refers to the times the wrench can spin the attached socket or bit. Impacts Per Minute (IPM) refers to the number of impacts from the internal mechanism.