10 Best Cordless Angle Grinder 2025 in the United States

The DEWALT 20V MAX Angle Grinder (DCG413B) stands out in the cordless angle grinder category, especially for users looking for a reliable and powerful tool. It features a brushless motor which enhances efficiency and longevity, eliminating the need for frequent maintenance like brush replacements. With a no-load speed of 3450 RPM, it delivers strong performance for grinding tasks. The grinder's weight of just 3.75 pounds makes it relatively lightweight, offering good maneuverability during use.

One of the notable strengths is its safety features. The electronic brake stops the wheel in two seconds or less, reducing the risk of accidents. Its kickback brake activates during unexpected situations, providing an extra layer of security. The E-Switch Protection helps prevent accidental restarts, which is a great feature if you’re concerned about safety during power interruptions.

However, there are some considerations to keep in mind. This tool does not include a battery, which means you will need to purchase one separately if you don’t already own a DEWALT 20V battery. While it’s designed for heavy-duty tasks, users may find its disc size of 4-1/2 inches limiting for larger jobs. Additionally, while the two-stage trigger is an important safety feature, it may take some getting used to for those who prefer a more straightforward operation.

In terms of ergonomics, it has a comfortable design that helps reduce fatigue during extended use, making it a solid choice for both DIY enthusiasts and professionals. If you’re looking for a portable, efficient angle grinder for various grinding tasks, the DEWALT 20V MAX is a great option, assuming you take into account the additional battery purchase.

The DEWALT 20V MAX* XR Angle Grinder (DCG405B) stands out with its powerful brushless motor, which means you won't have to worry about changing brushes—making maintenance easier. It has a 4-1/2-inch disc size, suitable for various cutting and grinding tasks. The grinder is battery-powered with a 20V battery voltage, providing decent power for most tasks.

One of its strongest features is the safety mechanisms, including a quick-stop brake that halts the wheel within 2 seconds, and a Kickback Brake that activates during pinch or bind-up events to prevent accidents. These features, along with the Power Loss Reset, significantly enhance user safety.

In terms of ergonomics, its compact design (12.9 inches in length) and moderate weight make it relatively comfortable to handle, though prolonged use might still cause some fatigue. However, the lack of included battery and charger could be a downside for those who don’t already own compatible DEWALT tools. The tool-only nature means extra purchases are necessary to get started. Ideal for DIY enthusiasts and professionals who prioritize safety and ease of use, but be prepared for additional investment in batteries and chargers if needed.

The Milwaukee 2880-20 M18 FUEL Cordless Angle Grinder is a solid choice for users looking for a powerful and portable tool for grinding tasks. With an 800-watt brushless motor, it offers a maximum no-load speed of 8,500 RPM, making it efficient and capable of handling a variety of materials. The grinder is compatible with all M18 batteries, allowing for flexibility, although you will need to purchase the battery separately if you don’t already own one.

One of its standout features is the electronic clutch, which helps protect against kickback, enhancing safety during use. Additionally, it includes overload protection to prolong the motor's lifespan. The anti-vibration side handle contributes to user comfort, making it easier to use for extended periods without causing strain.

In terms of ergonomics, this grinder weighs about 4.99 pounds, which is relatively light for a tool of this power, but some users might find it slightly heavier during prolonged use. The 5/8”-11 spindle allows for compatibility with common grinding accessories, making it versatile for different tasks. Potential buyers should keep in mind that this model is sold as a tool-only unit, meaning batteries and chargers are not included. This could be a drawback for those looking for an all-in-one package.