The DeWALT DCG413B and the DCG412B are both cordless angle grinders with a lot of similarities. However, there are a few key differences that set these two drills apart from one another. For instance, the DeWALT DCG413B includes the exclusive DeWALT Power Share technology which allows it to be used as an additional battery for other tools in the line of DeWALT’s XR Li-Ion tools. The DCG412B does not have this power sharing feature.

In addition, the DeWALT DCG413B is 18% more powerful than the DCG412B and it also has a longer warranty period than its competitor with a 3-year limited warranty as opposed to 2-year limited warranty offered by the other model.


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The 9903 features a powerful 8.8 AMP motor with electronic speed control to maintain constant speed under load. The variable speed control dial allows the user to match the speed (690-1,440 ft./min.) to the application. The 9903 also features less noise: at only 84dB, it is one of the quietest sanders in its class.

Why buy this Angle grinder?

With DeWALT you know you will be buying a great tool for the money. This Angle Grinder is no exception to this fact. We really like the way it is build and the grip it uses to protect yourself from harm.

The price is not bad and we could definitely recommend this product!

60 helpful tool tips

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The 9920 features a powerful 8.8 AMP motor that maintains constant speed under load, and variable speed control to match the speed to the application. The 9920 also features less noise and vibration than competitive models, which makes it an excellent choice for any contractor.

The design of the belt tracking system and the grip make this sander extremely easy to use. The low profile design and extended base allow you to sand flush against walls, making it a versatile tool.

Why buy this Angle grinder?

The Makita 9920 is a tool that is designed for woodworkers who need to undertake jobs that require precision. This product is perfect for a variety of jobs, such as cabinetry, furniture making and more. The 9920 has been engineered to provide the best in terms of innovative technology and best-in-class engineering.

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Our favorite DeWALT Angle Grinder

For this review we choose for the DeWALT DCG413B. This tool has in our eyes the best form-factor and offers the best usability. Also since the price difference is so minor it’s worth spending the extra cash.

Video: how to use a Angle Grinder