Dewalt DCG412B 20V Grinder Review

Dewalt DCG412B 20V Grinder Review

If you want to find the angle grinder that contains a brushless motor that can reach up to 8000 RPM, then you should consider DeWalt DCG412B angle grinder. It is an excellent solution for people who want to have the fantastic power tool that will stand the test of time.

Apart from the idea that you will get handy safety features in combination with ergonomic design and lightweight construction, you will get fantastic performance for both household and commercial use.

That is the main reason why we decided to present you a thorough DeWalt DCG412B angle grinder review.



Product Overview

Product: Dewalt DCG412B 20V Grinder

Cheapest Place to Buy:

Unique Feature: High Power Tool

My Rating: 9.7 out of 10




  • Size – When it comes to an extent, you will get a handy and compact grinder with only 7.3 x 16.8 x 4.8 inches. This is an excellent size that will allow you to handle most materials without straining muscles and having fatigue.
  • Weight – The overall weight with battery is 5.1 pounds, which is in the class of lightest grinders on the market. Finally, you will be able to work for the extensive amount of time without affecting your muscles.
  • Battery Type – It features 20V MAX Lithium-ion battery, which is the latest technology in the world of cordless tools. It will offer you maximum working hours without the need for a recharge. At the same time, it is much better than Ni-Cad alternatives. The main disadvantage is that you will get only bare tool within the package, which means that you will have to purchase battery as an additional expense.
  • Chuck Size – It includes quick wheel release that will allow you to change and adjust the blades in a matter of seconds. It contains 5/8-inches arbor where you can place various attachments for better versatility.
  • RPM – We have mentioned above that it works on a brushless engine that can reach maximum speed rate up to 8000 RPM. This is an excellent solution when we compare it with other grinders on the market.
  • Package – The package contains only bare tool, so you will have to purchase a battery to use it.
  • Warranty – The warranty deal is great because it offers you a three-year limited warranty, one-year free service, and 90-day money-back guarantee.

Dewalt DCG412B 20V Grinder Review



The first thing that we want to mention when it comes to performance is that this particular grinder will provide you a higher top speed than brushed motor models. At the same time, you will be able to enjoy it in compact design and wide-array of ergonomic features.

It is simple to use, and you will get different features that will provide you peace of mind during the performance.

It includes a brushless motor that can reach up to 8000 RPM of no-load speed in combination with lightweight construction.

Dewalt DCG412B 20V Grinder Review

It comes with high power engine that will help you finish grinding applications. Due to quick-change wheel release, you will be able to change wheels without using additional tools. It also contains tool-free guard that you can position based on your preferences.

It features 2-finger-trigger switch as well as a lock-off button that will increase the comfort of the grip and provide you convenient activation.

Two position side handle will increase the amount of versatility, support, and control.

Finally, you will be able to cut through metal, rebar, threaded rods and many more assignments such as sanding flap discs, finishing metal with wire stringer and many more.



The price is not too low when compared with other grinding tools, but you will still get the possibility to handle most materials in your workshop. You will be able to find it for approximately $100, which is $50 less than at the moment of release.

By choosing this particular grinder, you will invest in the future because it has excellent warranty deal that will increase the possibility of using it for an extended amount of time.

You will also get a great warranty deal that includes three-year limited warranty where you can change any part of the tool.

One-year free service will allow you to repair the device in case of some damage within the first year after the purchase. As the additional convenience, you will be able to return the tool during the first 90 days and get a full refund.

Dewalt DCG412B 20V Grinder Review


Helpful Tips

  • When grinding always wear gloves and face shield
  • You should always unplug it while changing wheels
  • Run it for a minute in a protected area before you start grinding
  • Work away from flammable materials because sparks can set them off
  • Always store them away from children’s reach


Bottom Line

Overall, DeWalt DCG412B angle grinder is the perfect choice for people who don’t have a limited budget and want to purchase angle grinder that will stand the test of time. It has decent features in combination with the high-end performance so that you can handle most materials in your workshop.

You should have in mind that grinding requires safety measures, so always wear protective gloves and glasses. The main downside is the higher price than other angle grinders on the market, but you will still be able to enjoy all the way.

In case that you have anything to add, feel free to comment in the section below, and we will answer you on short notice.


  • A great deal of RPM for convenient performance
  • Durable construction
  • Lightweight and compact
  • Brushless engine
  • High-capacity Lithium-ion battery


  • Expensive when compared with other angle grinders



Product Summary

Product: Dewalt DCG412B 20V Grinder

Cheapest Place to Buy:

Unique Feature: High Power Tool

My Rating: 9.7 out of 10


Click here if you want to learn more about Dewalt DCG412B 20V Grinder.

If you have more questions and concerns about this power tool, feel free to comment it below.

We would also be glad to hear some of your experiences about the quality and performance of this product.

Best Regards,

John Rico


2 comments on “Dewalt DCG412B 20V Grinder Review

  1. Hi I like your indepth review on the Dewalt DCG412B 20V Grinder I want to buy one for my friend because I borrowed his angle grinder and accidentally broke it I don’t know what happened but it just stopped working so right now im looking for a replacement.
    I don’t mind the price of the Dewalt DCG412B 20V Grinder i believe by good quality products tend to last.

    • I agree with you, price is an important factor when choosing a power tool. If high price products secure its longevity and durability then it would be a good investment.

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