RAT Tail Grinder 7-Inch Review

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Looking for a reliable and powerful angle grinder? Look no further than the DEWALT Angle Grinder, RAT Tail, 7-Inch, 13-Amp (DWE43840CN). With its brushless motor, this grinder is designed for long-lasting performance without the need for brush changes. But what sets this angle grinder apart is its advanced safety features. Equipped with a brake that can stop the wheel in 4 seconds or less, an electronic Kickback Brake that engages in case of any mishaps, and a power-loss reset function, this tool ensures maximum safety and efficiency. Plus, with an integrated lanyard attachment point and a 2-stage trigger, you can work confidently knowing that your tool is secure and requires deliberate actions to activate. Upgrade your grinding experience with the DEWALT Angle Grinder, RAT Tail, 7-Inch, 13-Amp (DWE43840CN).

DEWALT Angle Grinder, RAT Tail, 7-Inch, 13-Amp (DWE43840CN)

Find your new DEWALT Angle Grinder, RAT Tail, 7-Inch, 13-Amp (DWE43840CN) on this page.

Why Consider This Product?

If you’re in the market for a reliable and high-performing angle grinder, then the DEWALT Angle Grinder, RAT Tail, 7-Inch, 13-Amp (DWE43840CN) is definitely worth considering. With advanced features and impressive power, this angle grinder will help you tackle any task with ease.

One of the standout features of this angle grinder is its brushless motor. Unlike traditional motors that require regular brush changes, the brushless motor of the DEWALT angle grinder eliminates the need for such maintenance. This not only saves you time but also ensures that the motor operates at peak performance for longer.

Additionally, the electronic Kickback Brake is a game-changer when it comes to safety. This feature engages when it senses a pinch, stall, or bind-up event, instantly stopping the wheel and reducing the movement of the grinder. This not only protects you from potential accidents but also prolongs the lifespan of the tool.

But that’s not all! The DEWALT angle grinder also boasts a POWER-LOSS RESET function. In case of a power outage or unexpected shut down, simply cycle the ON/OFF trigger switch to restart the tool. This ensures that you can resume your work without any hassle.

Features and Benefits

Maximum Safety with the Kickback Brake

The electronic Kickback Brake of the DEWALT angle grinder is a standout feature that ensures maximum safety. When it detects any pinch, stall, or bind-up event, it engages with maximum force to stop the wheel instantly. This not only prevents accidents but also reduces the movement of the grinder, minimizing the risk of injury.

Brushless Motor for Peak Performance

Say goodbye to the hassle of brush changes with the brushless motor of the DEWALT angle grinder. This innovative technology eliminates the need for regular maintenance while providing powerful and efficient performance. With the brushless motor, you can count on consistent power and extended tool life.

Power-Loss Reset for Uninterrupted Work

In the event of a power outage or unexpected shut down, the DEWALT angle grinder’s ON/OFF trigger switch has a no-volt release function. Simply cycle the switch from off to on, and you can quickly restart the tool and resume your work without any delays. This feature ensures that you can stay productive without any interruptions.

Lanyard Ready for Added Convenience

If you often find yourself working at heights or in precarious positions, you’ll appreciate the integrated lanyard attachment point on the DEWALT angle grinder. While the lanyard is not included, this feature allows you to securely attach a lanyard for added convenience and peace of mind.

Check out the DEWALT Angle Grinder, RAT Tail, 7-Inch, 13-Amp (DWE43840CN) here.

Product Quality

DEWALT is a brand known for its commitment to quality, and the DWE43840CN angle grinder is no exception. Crafted with precision and built to withstand even the toughest conditions, this angle grinder is a testament to DEWALT’s dedication to providing reliable and durable tools.

With careful attention to detail and rigorous testing, DEWALT ensures that each angle grinder meets the highest standards of quality. This commitment to quality gives you the confidence that the DEWALT angle grinder will deliver excellent performance and stand the test of time.

What It’s Used For

Versatile Applications for Any Task

The DEWALT angle grinder is a versatile tool with a wide range of applications. Whether you’re cutting metal, grinding welds, polishing surfaces, or removing rust, this angle grinder is up to the task. Its powerful motor and efficient design make it an essential tool for any workshop or job site.

Perfect for DIY Projects and Professional Use

Whether you’re a DIY enthusiast or a professional tradesperson, the DEWALT angle grinder is a reliable choice. Its robust construction and advanced features make it suitable for both occasional home use and demanding professional applications. From small projects to larger industrial tasks, this angle grinder is your go-to tool.

Ideal for Construction and Metalworking

If you work in the construction or metalworking industry, the DEWALT angle grinder is a must-have tool in your arsenal. Its power and versatility make it perfect for cutting through different materials, such as metal, concrete, and stone. Whether you’re installing pipes, fabricating metal structures, or renovating a building, this angle grinder will make your job easier and more efficient.

Essential for Automotive and Maintenance Work

The DEWALT angle grinder is also an essential tool for automotive and maintenance work. From removing rust and corrosion to cutting through stubborn bolts, this angle grinder is invaluable in any car or machinery repair project. Its precision and power allow you to achieve professional results with ease.

DEWALT Angle Grinder, RAT Tail, 7-Inch, 13-Amp (DWE43840CN)

Discover more about the DEWALT Angle Grinder, RAT Tail, 7-Inch, 13-Amp (DWE43840CN).

Product Specifications

Specification Details
Motor Type Brushless
Wheel Size 7-Inch
Amps 13-Amp
Kickback Brake Yes
Power-Loss Reset Yes
Lanyard Attachment Integrated (Lanyard not included)
Trigger Design 2-Stage (Requires two actions to activate tool)

Who Needs This

The DEWALT Angle Grinder, RAT Tail, 7-Inch, 13-Amp (DWE43840CN) is a tool that caters to a wide range of individuals and professions. Whether you’re a professional contractor, a metalworker, an automotive enthusiast, or a DIY enthusiast, this angle grinder offers the power and versatility you need to get the job done.

DEWALT Angle Grinder, RAT Tail, 7-Inch, 13-Amp (DWE43840CN)

Pros and Cons


  • Powerful brushless motor for efficient performance.
  • Electronic Kickback Brake for maximum safety.
  • Power-Loss Reset for uninterrupted work.
  • Lanyard ready for added convenience.
  • Suitable for a variety of applications.


  • Lanyard not included.


  1. Is the brushless motor more durable than brushed motors? Yes, the brushless motor in the DEWALT angle grinder is more durable, as it eliminates the need for brush changes and reduces wear and tear.

  2. How quickly does the Kickback Brake stop the wheel? The Kickback Brake stops the wheel in 4 seconds or less on average, using the DW8826 wheel.

  3. Can the angle grinder be used with a lanyard? Yes, the DEWALT angle grinder has an integrated lanyard attachment point, although the lanyard itself is not included.

DEWALT Angle Grinder, RAT Tail, 7-Inch, 13-Amp (DWE43840CN)

What Customers Are Saying

Customer testimonials rave about the performance and reliability of the DEWALT angle grinder. Many highlight the convenience of the brushless motor, the safety features, and its versatility for various tasks. Customers appreciate the power and durability of this angle grinder, making it a highly recommended tool for both professionals and DIY enthusiasts.

Overall Value

Considering the advanced features and superior performance of the DEWALT Angle Grinder, RAT Tail, 7-Inch, 13-Amp (DWE43840CN), it offers exceptional value for both professionals and hobbyists alike. Whether you’re tackling small projects or demanding industrial tasks, this angle grinder will exceed your expectations and provide reliable performance for years to come.

Tips and Tricks For Best Results

To get the best results from your DEWALT angle grinder:

  1. Read the user manual carefully before use.
  2. Always wear appropriate safety gear, including eye protection and gloves.
  3. Use the right wheel and accessories for each specific task.
  4. Regularly inspect and clean the angle grinder for optimal performance.
  5. Store the tool in a dry and secure location when not in use.

Final Thoughts

Product Summary

The DEWALT Angle Grinder, RAT Tail, 7-Inch, 13-Amp (DWE43840CN) is a powerful and reliable tool that offers excellent performance in various applications. With features like the brushless motor, Kickback Brake, and Power-Loss Reset, this angle grinder ensures safety, efficiency, and convenience.

Final Recommendation

For anyone in need of a versatile and dependable angle grinder, the DEWALT Angle Grinder, RAT Tail, 7-Inch, 13-Amp (DWE43840CN) is an excellent choice. With its advanced features, durable construction, and outstanding performance, this angle grinder will prove to be a valuable addition to your toolbox. Don’t miss out on the opportunity to experience the power and reliability of DEWALT’s angle grinder.

Get your own DEWALT Angle Grinder, RAT Tail, 7-Inch, 13-Amp (DWE43840CN) today.


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