Top 8 Best Cordless Angle Grinder Reviews (2024 Updated)

An angle grinder is a versatile tool for performing various applications, including cutting, grinding steel, stone, masonry, concrete in residential, industrial environments. The best cordless angle grinder running on a powerful brushless motor and high-quality batteries will maximize your productivity with no hassle of extension cords.

Let’s take a look at best-rated battery angle grinders, from high-end models to some affordable options that still pack some awesomeness.

Top 8 Best Cordless Angle Grinders 2024

Product ImageProduct NameFeaturesPrice
DEWALT DCG413B 20V MAXBest cordless angle grinder for the moneySee latest Price
Milwaukee 2780-20 M18 Fuel 4-½"/5" PadLong motor lifeSee latest Price
Bosch Gws 10.8V EC Drill SoloBest small cordless angle grinderSee latest Price
Makita XAG04Z 18V BrushlessAutomatic Speed Change technologySee latest Price
CRAFTSMAN CMCG400B V20Best cheapSee latest Price
Fein 71200261090 18VBest brushless cordless angle grinderSee latest Price
Milwaukee M18 Fuel 7-9" Large GrinderSuitable for heavy-duty jobsSee latest Price
Metabo 36V 9" Brushless BrakeInstant brake to prevent injuriesSee latest Price

In-depth 8 Top Rated Cordless Angle Grinder Reviews

1. DEWALT DCG413B 20V MAX – Best cordless angle grinder for the money

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  • Weight: 3.75 pounds
  • Wheel diameter: 4-½ inches
  • Dimension: 12.2 x 4.7 x 6 inches
  • Voltage: 20 Volts
  • Wattage: 20 watts
  • Measurement System: Metric
  • Warranty: 3 years

DEWALT DCG413B is an excellent choice for performing most of your home landscaping or DIY tasks. It also lies among the top-rated ones and the best price model of DEWALT cordless angle grinders for several reasons.

First, this DCG413B grinder runs on a brushless motor, which is 57% more powerful, requires less energy, and produces less heating and noise than a brush motor. Besides, you don’t have to change the brush after months of use, which is more efficient than a brush motor like the DCG412B. You can use this portable grinder for cutting tiles of different sizes or other rigid materials with ease.

Second, this 20-Volt grinder has some improvements in features than the previous model DC411B 18V. It has a higher rotation speed of 6,800RPM while the DC411B is only 6,500RPM, allowing it to cut or grind more rigid materials.

When there is a power outage or unplanned shutdown, the E-Switch Protection will be activated to protect you from accidental starting. To restart the tool, you will have to trigger the switch.


  • High-efficient brushless motor
  • High rotation speed (6,800RPM)
  • E-Switch Protection
  • Lightweight (5.19 pounds)


  • Need to cool down the battery before charging

2. Milwaukee 2780-20 M18 Fuel 4-½”/5″ Pad – Long motor life

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  • Weight: 5 pounds
  • Wheel diameter: 4.5/5 inches
  • Dimension: ‎2.3 x 12.9 x 7.6 inches
  • Voltage: 18V
  • Measurement System: Metric
  • Warranty: 5 years

If you expect the superpower of a corded angle grinder inside a portable one, Milwaukee 2780-20 should be on the #1 position on your shortlist. This tool promises to deliver 2X runtime and 10X longer motor life, thanks to its two RED Lithium XC5.0 batteries and a Powerstate brushless motor. 

With nearly 100 years of innovation in manufacturing tools for professional construction users, Milwaukee understands that inappropriate grinder use can cause severe injuries to its users. Therefore, this angle grinder features REDLINK PLUS Intelligence – the world’s best-in-class system that creates and maintains close communication between the tool, charger, and batteries.

This system maintains an ideal environment to boost your performance, extend the engine’s lifetime usage while protecting you from common accidents like wheel breakage or kickback.

This Milwaukee angle grinder also revolutionizes the way you change your accessories, thanks to its 100% tool-free design. Instead of following many steps that take much effort, now you can change accessories or adjust the guard in a few seconds without using special tools like a wrench.


  • Up to 2X runtime and 10X longer motor life
  • REDLINK PLUS Intelligence for utmost productivity and protection
  • 100% tool-free to quickly changing accessories or adjusting guard


  • Not for medium or heavy-duty work

3. Bosch Gws 10.8V EC Drill Solo – Best small cordless angle grinder

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  • Weight: 1.12 pounds
  • Wheel diameter: 75 x 10 mm
  • Dimension: ‎17.48 x 14.06 x 4.76 inches
  • Voltage: 10.8V
  • Measurement System: Metric
  • Warranty: 3 years

Every homeowner should own a portable angle grinder like Bosch GWS10.8V to handle all fixing jobs. It weighs only 1.12 pounds, making it one of the lightest battery-powered angle grinders on the market.

Its lightweight also allows you to operate it with one hand while reducing hand and wrist fatigues – the main reason that leads to serious injuries. This grinder has a compact sizing of 17.48 x 14.06 x 4.76 inches, which only takes up a small space in your home garage or farm vehicle.

Another notable point of this Bosch angle grinder is its remarkable rotating speed of 19,500RPM, which is eligible for cutting or grinding hard materials like steel or concrete. Swapping grinding blades can be done in a blink without tools, thanks to its innovative spindle lock.

As stated by the manufacturer, you should only use this tool for light-duty tasks due to its limited Voltage of 10.8 Volts and its small grinding disc size of 3 inches. Once again, this is a tool-only item. So, you need to spend extra money on a battery and a charger.


  • Lightweight and compact for easy operation and storage
  • Spindle lock for tool-free blade switching


  • Can only be used for light tasks
  • No battery and charger included

4. Makita XAG04Z 18V Brushless – Automatic Speed Change technology

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  • Weight: ‎4.8 pounds
  • Wheel diameter: 4-1/2” / 5″
  • Dimension: ‎8.4 x 13.3 x 5.5 inches
  • Voltage: 18V
  • Measurement System: Metric
  • Warranty: 3 years

Kickback is a common accident while using angle grinders, resulting from using the wrong wheel or running the grinder at the wrong speed. This compact cordless angle grinder from Makita comes with the Automatic Speed Change technology to modify the speed and torque for maximum performance and reduce possible risks of kickbacks.

Nonetheless, suppose the grinding wheel is suddenly stopped (for example, when meeting hard materials or in a power outage). In that case, the Active Feedback-sensing Technology (AFT) will force the motor to turn off instantly.

Apart from the two above innovative technologies, its ergonomic design plays a vital part in a comfortable and safe user experience. This grinder is only 13.3-inch long and weighs 4.8 pounds, which is possible for use with one hand.

Even if you have to hold this tool all day long, the soft padded handle will let you maneuver the tool firmly without hurting your arms. You can use this hand tool to cut, grind, or sand various materials like water pipes, conduits, concrete, tile, etc.

As the XAG04Z is listed in the LXT Brushless line of Makita, it also offers some extra advantages for you, namely up to 3 times faster charging, up to 50% more runtime with an 18V Lithium-ion battery, up to 50% longer motor life with the LT brushless motor, and efficient power management with the Makita’s signature Start Protection Controls.

Have you owned an 18V or 36V battery-powered LXT Makita tool? If yes, you can utilize its battery and charger for this angle grinder without spending an extra fee for a new one.


  • Automatic Speed Change & Active Feedback-sensing technologies
  • Ergonomic design for optimum performance, comfort, and safety
  • LED screen to indicate battery charge level


  • No specific complaint

5. CRAFTSMAN CMCG400B V20 – Best cheap

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  • Weight: ‎5.7 pounds
  • Wheel diameter: ‎4-1/2-inch
  • Dimension: ‎7.01 x 2.87 x 8.66 inches
  • Voltage: 20V
  • Measurement System: Imperial
  • Warranty: 3 years

The Craftsman CMC400B is an affordable yet robust choice for almost all small cutting or grinding jobs on your property. It boasts a powerful motor with a maximum rotating speed of 8,500RPM driving a grinding blade of 4-½ inches in diameter. But that isn’t the end of its story.

This home tool has a sturdy and comfortable construction, making it an ideal choice for homeowners or those with little to no experience in grinders. Its cast metal housing is durable and able to cool down the heat during an extended period.

Besides, you can easily adjust the handle in 3 positions to cut odd-shaped areas with high precision. The handle is contoured over-molded for a firm grip, enabling you to work for several hours with no arms or hand fatigue.

Despite its awesomeness, this Craftsman angle grinder has two drawbacks. Its battery dies relatively quickly. So, you need to purchase two batteries to use them interchangeably when handling all-day construction jobs.


  • Affordable
  • Adjustable 3-position handle
  • Cast gear housing


  • The battery might die quickly

6. Fein 71200261090 18V – Best brushless cordless angle grinder

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  • Weight: ‎14.95 Pounds
  • Wheel diameter: ‎5″
  • Dimension: 19 x 12 x 7.5 inches
  • Voltage: 18V
  • Warranty: One year with purchase, and two additional years with product registration

This 18-Volt Fein item is another valuable pick-up in my best cordless angle grinder list. This grinder has a broad mounting thread from 5/8 to 11 inches and variable speed settings, meaning that you can either work on small areas with high precision or perform smoothly on a large area in a short time.

Compact as it might seem, this brushless angle grinder offers you a robust performance, even for hours. Its PowerDrive brushless motor comes with a cooling fan and temperature monitoring to prolong its lifetime usage while allowing you to handle challenging tasks with no accidents or damages.

The flexibility in the power of this Fein angle grinder also adds up to its reputation on the market. This angle grinder has a MultiVolt interface and can be compatible with all 12 to 18V Li-ion batteries of Fein. However, to get its best performance, you should use a Fein HighPower Li-ion battery pack.


  • Expansive 5/8-11-inch mounting thread and various speed settings for handling multiple jobs
  • Brushless PowerDrive motor with a cooling fan and temperature monitoring
  • MultiVolt interface; compatible with all 12-18V Li-ion batteries of Fein


  • Too heavy

7. Milwaukee M18 Fuel 7-9″ Large Grinder – Suitable for heavy-duty jobs

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  • Weight: 18 pounds
  • Speed: max 600 RPM
  • Size: 7-9 inch
  • Voltage: 18V

When tackling heavy-duty cutting jobs, you should choose industrial-grade angle grinders with a large disc size like the Milwaukee M18. With a maximum disc size of 9 inches, this grinder can work with all grinding discs up to 230mm in diameter.

Safety is a crucial criterion you should be aware of when using a robust grinder like M18. This best 9″ angle grinder features Redlink Plus Intelligence to ensure optimal performance while preventing overload and damage to the tool.

This grinder is a craftsman’s best friend since it can cut or grind almost everything. If you want to utilize this large angle grinder for knife making, you should purchase a flap disc (or called a blending disc) to do your grinding job.


  • Large disc size of 9 inches to cut thick and hard materials
  • Powerful motor


  • Pricey

8. Metabo 36V 9″ Brushless Brake – Instant brake to prevent injuries

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  • Weight: 30.41 Pounds
  • Wheel diameter: 9″
  • Dimension: 27.25 x 15.5 x 7 inches
  • Voltage: 36V
  • Measurement System: Metric
  • Warranty: 3 years

The Metabo 613074620 is a premium choice for those who frequently have to work for more than 8 hours a day. Made in Germany – the country of high engineering standards, this portable angle grinder definitely won’t disappoint you!

This Metabo grinder has a large 9-inch grinding disc running on a brushless motor that has a no-load speed of 6,600RPM to remove any soft or hard material.

If there is a sudden, the instant kickback brake will stop your tool in seconds instead of minutes to prevent damage to the motor. Also, you will be protected from possible safety hazards.

Another strong plus of this premium grinder is that the batteries can last up to 5 hours of continuous operation in a single charge. Since it is air-cooled, you don’t have to wait to cool them down before charging.

Unlike the 6 remaining counterparts on this list, this 36-Volt grinder has two 6.2Ah batteries and a charger. Thus, you will have to pay more money for this all-in-one solution. In other words, if you are looking for the best budget grinder for light-duty cutting jobs at home, this item is not an ideal one.


  • Made in Germany with German standards
  • Instant brake to protect you and the motor from safety hazards and damages
  • The batteries and charger are included


  • Expensive
  • Super heavy (30.4 pounds)

How To Choose The Best Cordless Angle Grinder?

Power of the motor

The common measurement unit of a cordless angle grinder’s power is Watts. The greater the number is, the more powerful the motor is.

Furthermore, a grinder’s power is dependent on the disc size that you use, which is: the one with a larger disc will necessitate greater power.

In case that you cannot choose between 2 identical options having the same wattage, remember that the grinder having a bigger disc will not be as powerful as the other.

The typical power output of an angle grinder varies between 650 and 2,700 W. In general, the tool’s efficiency for certain projects is determined by its motor power. Therefore, you should better know what you are going to use your grinder for before purchasing one.

Battery capacity

Battery capacity affects the amount of time you can use your grinder before it needs to be recharged. The larger the capacity, the longer you can operate your grinder without recharging. Typically, for a power tools, this capacity should range between 1.2 Ah and 3 Ah.

Professional angle grinders can have a maximum battery capacity of 5.2 Ah. They are intended for the most demanding jobs, however, are significantly more costly and heavier.

When you carry out difficult operations that require more power, the grinder’s battery will be depleted faster. As a result, it’s preferable to own 2 batteries in one pack and have one on standby at all times. This is just to ensure the constant operation of your cordless power tool.


To measure the power of a cordless tool, people use the term ‘Volt’(V). For an angle grinder, the battery voltage often ranges from 7.5V to 24V. The optimal number for most cordless grinders is between 18 V and 20 V, which provides the ideal balance of price and functionality.


The speed measurement of angle grinders is RPM (or revolutions per minute). Their standard speeds vary from 5,000 to 10,000 RPM, while some extremely powerful grinders can reach 12,000 RPM.

However, these numbers are for “no-load” settings, which means the grinders’ wheel is not cutting/grinding any workpiece and is freely spinning. Once it begins to cut or grind, its speed will drop dramatically.

The greater the RPM, the faster and easier your tool will be able to cut through your workpieces. But, the disc will be hotter and becomes more susceptible to rupture, posing an injury risk.

Ensure that you’re using the right wheel for the job, and pay attention to its maximum speed. For instance, a 7,500-rpm wheel that is spinning faster can break when forcefully used, launching grinding disc’s shards into the air. This can cause you and bystanders severe injuries.

Disc size

Angle grinders are classified by their size, which is determined by the largest diameter of the disc that they can handle. For a majority of DIY projects, wheels with diameters of 4”, 4.5”, or 5” will be adequate.

On the other hand, larger wheels (9-inch max) are suitable for industrial tasks which require cutting through tough materials. The grinders, then, must also be larger to accommodate the cutting strength. This implies a riskier process as heavier grinders make you more prone to hand fatigue in comparison to their smaller counterparts.

The guard

angle grinder wheel guard
Angle grinder wheel guard

The guard is an important safety feature you should look for when choosing any angle grinder, either a cordless or a corded one. As it covers half of the grinding wheel, it keeps debris and sparks from flying to the machine user, as well as to protect surrounding surfaces from harm when the grinder is used in small places.

A grinder’s guard can be moveable or fixed. The former is more common because it allows both left- or right-handed people to use the machine. It can also be adjusted to prevent debris from flying towards the operator. Nevertheless, one minus point is that it may slip off the grinder.

The fixed hand guards, on the other hand, are more durable and show less chances of falling off the grinder.

Safety features

  • Restart protection

This feature eliminates the possibility of an inadvertent tool activation, helping you prevent injuries. It’s also beneficial if the tool becomes too hot or gets left behind. In such cases, the restart protection function will be activated to prevent the resumption of your angle grinder.

  • Slow start

The feature prevents the grinder’s motor from overloading at start-up by gradually increasing its speed to the optimal levels. Furthermore, it lowers vibration, which, in return, extends your power tool’s overall durability.

  • Kickback protection

This safety feature will automatically stop your grinder if it loses control, sparing you from injury.

Even though these 3 safety features raise the price of angle grinders, they’re essential for job site safety.

Frequently Asked Questions (FAQs)

1. Are cordless angle grinders any good?

Cordless angle grinders are beneficial for DIY hobbyists and homeowners due to their portability and performance. It is lightweight and compact enough to carry around your home or goes along with you on your worksites, yet powerful enough to handle almost all grinding and cutting jobs.

2. How long do battery angle grinders last?

The maximum runtime of a battery-powered angle grinder depends on its battery capacity. The most powerful grinders using cheap and small batteries can last for 1-2 hours. Some others, like Bosch GWS18V-45, coming with large-capacity batteries, can last a whole working day.

3. Can you use an angle grinder to smooth concrete?

Yes, you can use an angle grinder for concrete leveling, smoothing, and polishing. Your angle grinder should have a diamond cup wheel, a vacuum cleaner, and a dust shroud attachment to smooth concrete.

4. Can I grind concrete with an angle grinder?

Although an angle grinder is not the most potent tool for grinding jobs, it can grind concrete precisely in areas hard to reach. Thus, you can use this grinder to crush concrete in small to medium-sized projects.

My Top Pick

Unlike the best corded angle grinders, cordless ones allow us to perform cutting and grinding jobs effortlessly without depending on cords or cord extensions. When picking up the best cordless angle grinder for home use, you should pick up one extra battery as a backup. Otherwise, you will have to waste your time on energy charging.

If you have already had a battery-powered tool of the 8 following brands, you should get the grinder of the same brand to save your budget on new batteries.

DEWALT DCG413B is my best battery angle grinder for all home light-duty fixing and DIY tasks. This grinder features a brushless motor and has a rotation speed of 6,800RPM, which is sufficient to tackle all my jobs.

If you are still not satisfied with the suggestions above, check out the detailed review of the top 10 best quality angle grinders here!

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