Top 7 Best Dewalt Angle Grinder Reviews (2024 Updated)

Over 75% of professional blacksmiths and welders own a Dewalt angle grinder in their lineup tool. Since 1922, Dewalt has earned a lot of reputation for its powerful grinder models for different applications and materials.

Finding the best Dewalt angle grinder might be challenging for a starter or homeowner with little experience in this field. In this article, I have listed the 7 best-rated corded and cordless grinders of this well-known brand.

Top 7 Best Dewalt Angle Grinders 2024

Product ImageProduct NameFeaturesPrice
DEWALT DWE402 4.5” Angle Grinder ToolBest overallSee latest Price
DEWALT DCG413B 20V MAXBest price for a cordless Dewalt grinderSee latest Price
DEWALT DCG405B 20V MAX XRBest Dewalt 4 1/2 Angle GrinderSee latest Price
DEWALT DWE43113 4.5”/5”Best bang for the buckSee latest Price
DEWALT FLEXVOLT DCG418X1 60V MAX 4.5”/6”Come with kitbagSee latest Price
DEWALT D28499X 7”/9”Suitable for heavy-duty jobsSee latest Price
DEWALT DWE4559NBest Dewalt 9-inch Angle GrindersSee latest Price

In-depth 7 Top Rated Dewalt Angle Grinder Reviews

1. DEWALT DWE402 4.5” Angle Grinder Tool – Best overall


  • Power source: Corded
  • Dimensions (LxWxH): 15.63 x 5.94 x 4.81 inches
  • Speed: 11,000 RPM
  • Weight: 6.2 pounds
  • Horsepower: 1.8 HP
  • Voltage: 120V

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The DWE402 is the best Dewalt corded angle grinder for DIY, home fixing, and other purposes. This tool can handle all the toughest jobs, thanks to its superpower.

The amperage number indicates the running power of the motor. In other words, the higher the amperage, the more efficient the tool will be. This Dewalt grinder features a powerful motor with an amperage of 11 amps, allowing it to cut hard and heavy materials like concrete, bricks, aluminum, etc.

The high amperage, along with the remarkable rotating speed of 11,000RPM, makes it a grinder with the best power to weight/size ratio available on the market.

Keep in mind that this speed rating is under ‘no-load’ conditions, meaning that the wheel isn’t cutting or grinding anything. When it comes to working, this speed can be slow down depending on the thickness and hardness of the cutting materials.

Another reason that I included this corded angle grinder on my top list is that it uses both AC (Alternating Current) and DC (Direct Current) power supplies. Thus, it can take advantage of these two current types in different working requirements without using an adapter.

For example, when performing light-duty DIY projects at home, you can use the DC to save more energy. But when working on construction sites or large-scale projects, you can use this tool with an AC with higher voltage levels.


  • Powerful 11-amp motor
  • A high rotating speed of 11,000RPM
  • AC/DC switch
  • Quick-Change Wheel Release


  • Too heavy for one-hand operation (6.2 pounds)

2. DEWALT DCG413B 20V MAX – Best price for a cordless Dewalt grinder


  • Power source: Battery powered
  • Dimensions (LxWxH): 12.2 x 4.7 x 6 inches
  • Weight: 3.75 pounds

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If you want a cordless angle grinder, the DCG413B is the best price choice among many grinder models of Dewalt due to the 2 following reasons.

First, this Dewalt cordless grinder runs on a 20V brushless motor with numerous advantages over a grinder with a brushed motor. Since this motor type requires no brush change, you don’t have to waste too much extra budget on brush replacement and lessen the annoyance of running an outdated brush. A brushless motor can also maintain its maximum torque continuously while generating fewer hot sparks and using less battery power.

Second, the Dewalt DCG413B also comes with various safety features to prevent the risks of injuries or health issues for you. If there is a power outage or a sudden shutdown, the E-Switch protection will be triggered. You have to cycle the trigger switch (turn it off, then turn it on).

In addition, the Kickback Brake quickly stops the blade and shuts the engine down within 2 seconds when there is a sudden change in the blade’s movement to avoid some accidents like kickbacks.

But always remember to wear proper Personal Protective Equipment (PPE) when working with a robust hand tool like angle grinders.


  • High-efficient brushless motor
  • Various safety features: E-Switch protection, Kickback Brake
  • Battery-powered; no cord or cord extension required
  • Made in USA


  • No specific complaint

3. DEWALT DCG405B 20V MAX XR – Best Dewalt 4 1/2 Angle Grinder


  • Power source: Battery powered
  • Dimensions (LxWxH): 12.9 x 6.3 x 5.1 inches
  • Speed: 9000 RPM
  • Wattage: 850 watts
  • Weight: 4.47 pounds

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The Dewalt DCG405B has some similarities with the second DCG413B, like a 20V brushless motor powered by rechargeable batteries, a standard grinding disc’s diameter of 4 ½ inches, a wattage of 850W, Kickback Brake available. So, what differentiates this battery-powered grinder from the DCG413B and also from several grinder models of Dewalt?

Let’s compare the DCG405B with the second DCG413B first.

They are both in the small angle grinder product line of Dewalt, but the DCG405B is slightly more expensive and heavier than the DCG413B (4.47 pounds versus 3.75 pounds with battery included).

This number doesn’t sound meaningful for an average user with 1-2 hours of operation per week. Yet, it is still worth considering if you prefer one-hand operation or you have to work all day with your angle grinder.

How about the DCG405B with a corded grinder like DWE402?

The DCG405B is a cordless angle grinder, enabling you to have more freedom when working in tight or odd spaces without sticking with a reliable power supply.

Its lightweight of 4.47 pounds (versus the weight of 6.2 pounds of the DWE402) makes it more comfortable for controlling or transportation, especially when you have to carry this tool with you to work sites daily or when you have to move back and forth between many places at a time.

Its brushless motor also offers higher performance with less maintenance effort. However, this cordless grinder doesn’t have the Dust Ejection System like the #1 best-rated DWE402, meaning that you have to manually clean the motor and internal parts after use to avoid damages to your tool.

See more top-rated 4,5″ angle grinders on the market here!


  • Lightweight
  • Brushless motor
  • Power Loss Reset to prevent accidental restarts


  • Slightly heavier than the DCG403B
  • Doesn’t have the Dust Ejection System like DWE402

4. DEWALT DWE43113 4.5”/5” – Best bang for the buck


  • Power source: Corded
  • Dimensions (LxWxH): 18 x 6 x 5 inches
  • Weight: 5.1 pounds
  • Speed: 9000 RPM

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This brushed Dewalt angle grinder boasts a disc size of 5 inches, which is compatible with all cutting/grinding discs with a diameter from 115 to 125mm. These compact disc sizes are suitable for most of your DIY projects, as larger discs can become bulkier and tedious to maneuver.

Another strong plus of this electric grinder is its high motor amperage of 13 amps with a maximum no-load speed of 9,000 RPM. Besides, it has a wattage of 1700W for polishing (500W), grinding (1,000W), or cutting through thin and simple materials (1,500W). However, this power output is not eligible for cutting thick materials.

Another drawback of this Dewalt angle grinder is that it doesn’t have variable speed options, so you will have to work with the same rotating speed for all applications. Yet, if you only perform with standard cutting and grinding jobs, this drawback doesn’t matter!


  • Fits all discs from 115 to 125mm
  • Standard arbor size of 5/8 inches


  • Can’t be used to work with thick materials
  • No variable speed

5. DEWALT FLEXVOLT DCG418X1 60V MAX 4.5”/6” – Come with kitbag


  • Power source: Battery powered
  • Weight: 14 pounds
  • Speed: 9000 RPM

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Dewalt DCG418X1 is an excellent replacement for your corded grinder. This premium 60V Flexvolt grinder delivers a stunning performance without increasing the tool’s weight and size.

This Dewalt grinder runs on a robust 13-amp motor with a no-load speed of 9,000 RPM. Additionally, its disc size variants from 4.5 to 6 inches allow you to handle many applications without cutting depth limitations.

For example, you can use this tool with a compact 4.5-inch disc for cutting thin pieces of firewood or choose a 6-inch disc for thicker materials.

However, it weighs 14 pounds, which is too heavy for a one-hand operation. You might have to experience arm and hand strains when working with this grinder for an extended period.


  • Robust 13-amp motor
  • Various disc size choices (4.5 – 6 inches)
  • Kitbag included


  • Too heavy

6. DEWALT D28499X 7”/9” – Suitable for heavy-duty jobs


  • Power source: Corded electric
  • Weight: 16.37 pounds
  • Dimensions (LxWxH): 10.13 x 24.25 x 5.06 inches
  • Horsepower: 5.3 HP
  • Speed: 6000 RPM

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When finding an angle grinder, while most people will prioritize 3 major criteria lie the power, price tag, and disc size, I strongly focus on its ergonomics. If you have to use a grinder for up to 10 hours per day, you want to make sure that your tool is comfortable to use and easy to maneuver.

A grinder with a user-friendly design like D28499X is a practical choice to maximize your performance while protecting you from severe injuries and tool damages. Thanks to its 5-position side handle, the rotating rear handle, and the low-profile gear case, you can control the tool easily in tight spaces and make fast cuts with high precision.

With nearly 100 years of experience in manufacturing grinders and mechanical tools, Dewalt understands that guard plays a vital part in grinders. The D28499X makes the guard ‘adjustable,’ allowing you to change the guard in your most comfortable position without removing it.

Since there might be a lot of flying sparks and metal debris, the armature and field have an epoxy coating as a solid protective layer to abrasion.

Since this grinder has a disc diameter of 7 to 9 inches, it can fit all 8-inch cutting or grinding discs. Before assembling a disc on your tool, make sure that your disc is in good condition. If you notice any damage to your disc, replace it with a new one to avoid unwanted accidents or tool damages.


  • Excellent ergonomic design – adjustable side handle and rear handle
  • Adjustable guard
  • Overload protection


  • Not applicable for light-duty jobs due to its heavyweight (16.37 pounds) and lack of the popular 4.5-inch disc size

7. DEWALT DWE4559N – Best Dewalt 9-inch Angle Grinders


  • Power source: Corded electric
  • Dimensions (LxWxH): 24.21 x 4.92 x 9.84 inches
  • Weight: 12.1 pounds
  • Speed: 6500 RPM
  • Horsepower: 4.7 HP

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Among the large Dewalt angle grinders, the DWE4559N is the best-selling model. This grinder comes with a large disc diameter of 9 inches and a high horsepower of 4.7HP to handle thick materials with ease.

Nothing is riskier than using an outdated brush for a large-scale project. Either the tool will be damaged or suffer from severe illness and accidents like kickbacks and hand and arm injuries.

Whether you are a professional grinder or a seasonal home user, you should change your brush motor regularly for a safe working experience. In this best 9″ grinder, the tool will automatically turn off when your carbon brush needs a replacement. You can quickly replace the new brush via its brush window.


  • Extensive disc diameter of 9 inches
  • High horsepower of 4.7HP
  • Anti-Vibe Trigger handle
  • Brush motor replacement auto-shutdown with large brush window


  • Only runs on AC

FAQs (Frequently Asked Questions)

1. What is a Dewalt grinder used for?

A Dewalt grinder can be used for various purposes, like:

  • Grinding metal
  • Cutting tiles, stone, and masonry
  • Removing paint and rust
  • Cutting rods, bars, and bolts

2. Does Dewalt make a variable speed grinder?

Dewalt does make some angle grinders with various speed options, like the DCG426B (20V, 1 ½ inch), DW43231VS (5 inches, 13-amp), DWE43240VS (13 inches, 13 amps), etc.

3. What is the difference between a 115 and 125 grinder?

A 115mm angle grinder has a maximum cutting depth of only 30mm, but it is precise and easier to handle than a 125 grinder.

On the other hand, a 125mm grinder has a higher cutting depth of 38mm but is heavier, making it harder to maneuver than the popular 115 one.

4. How do you change the blade on a Dewalt small angle grinder?

To change the blade on a small DEWALT angle grinder:

  • Step 1: Unplug the Dewalt grinder from the power source. Then, press and hold the spindle lock on the grinder. Keep rotating the blade until it locks into its position.
  • Step 2: Use the wrench that comes along with the grinder to turn the nut that secures the wheel to the spindle counterclockwise.
  • Step 3: Remove the old blade and the backer plate from the grinder’s body. Put the plate back with its recess facing away from the grinder.
  • Step 4: Place the new blade on the grinder, with its hump on the top of the blade inside the backing plate’s concave. Insert the nut onto the tool’s body until it begins to turn. Then, use the wrench to tighten the nut

My Top Pick

Dewalt is a reliable brand name for angle grinders and other power tools. It offers a wide range of choices for grinders of all levels. However, there is no perfect angle grinder for everyone. In other words, you have to make your final decision based on your budget, cutting depths, cutting materials, workload, and purposes.

If you ask for my recommendation, Dewalt DWE402 is my best Dewalt angle grinder. This grinder is worth your every penny thanks to its sturdy construction, high amperage and rotating speed, and 2 power current choices (AC/DC).

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