10 Best Cordless Grinder 2025 in the United States

The DEWALT 20V MAX* Angle Grinder offers high performance with its brushless motor, eliminating the need for changing brushes. The grinder is powered by a 20-volt battery, which is not included and must be purchased separately. With a disc size of 4.5 inches and a no-load speed of 3450 RPM, it can handle various grinding tasks effectively.

At 3.75 pounds, it is relatively lightweight, which helps in reducing user fatigue during extended use. The ergonomics are designed to make handling more comfortable, and the two-stage trigger adds an extra layer of safety by requiring two actions to activate the tool, reducing accidental startups. Additional safety features include the Kickback Brake and E-Switch Protection, which make this grinder a safer option for users.

DEWALT is a reputable brand in the tools category, and the product comes with a 3-year limited warranty, offering peace of mind regarding its durability. A significant drawback is that the tool does not come with the necessary battery and charger, which must be purchased separately. This can be an added expense if you don’t already have compatible DEWALT batteries. If you are looking for a reliable and safe cordless grinder for grinding tasks, and already own DEWALT 20V batteries, this tool could be a good fit.

The Milwaukee 2880-20 M18 FUEL Brushless Cordless Grinder is a commendable choice for users looking for a robust and reliable cordless grinder. It operates on an 18-volt battery, making it compatible with all M18 batteries, which is highly convenient for users who already own Milwaukee tools. The grinder features a 4-1/2 inch to 5 inch disc size, offering flexibility for different grinding tasks. With a no-load speed of up to 8500 RPM, it promises efficient performance for various applications.

At 4.99 pounds, it strikes a balance between being lightweight for ease of handling and sturdy for durability. Safety features like the electronic clutch for kickback protection and overload protection enhance user safety and extend motor life. Additionally, the anti-vibration side handle boosts user comfort during extended use. Ergonomically, the grinder's design aims to reduce strain and increase control, making it suitable for both professional and DIY users.

Milwaukee's reputable brand and the 5-year warranty offer peace of mind about the product's quality and support. However, it is important to note that the tool does not come with batteries included, which means an additional purchase might be necessary if users do not already own compatible batteries. Also, the weight, while manageable, might still be a bit heavy for prolonged use by some individuals. This cordless grinder stands out for its blend of performance, safety, and comfort, making it a solid choice for anyone in need of a reliable power tool for grinding tasks.

The DEWALT FLEXVOLT ADVANTAGE 20V MAX* Angle Grinder is a compelling choice for those seeking a versatile and powerful cordless grinder. One of its standout features is the significant power boost of up to 54% when paired with FLEXVOLT batteries, ensuring it tackles tough grinding jobs effectively. The grinder supports both DEWALT 20V MAX* and FLEXVOLT batteries, offering flexibility in terms of power options. Safety is well-covered with features like the Kickback Brake and E-CLUTCH, which swiftly stop the grinder during a bind-up, and the E-Switch Protection, which requires the switch to be cycled after a power interruption, preventing accidental restarts.

Designed with ergonomics in mind, this tool weighs only about 1 pound, making it lightweight and easy to handle. It features a paddle switch for comfortable operation, and its compact design (13.11'L x 6.2'W x 4.9'H) makes it suitable for work in tight spaces. However, it's worth noting that while the grinder is 'Tool Only,' meaning it doesn't come with batteries, potential buyers should consider the additional cost of purchasing compatible batteries.

The DEWALT brand is well-respected, and this product comes with a 3-year limited warranty, a 1-year free service contract, and a 90-day money-back guarantee, providing some peace of mind. The tool is also ready for the Tool Connect Chip for asset management, although the chip is sold separately. Its maximum rotational speed is 9000 RPM, which should be sufficient for most applications but might not meet the needs of heavy-duty users who require faster speeds. This grinder would benefit DIY enthusiasts and professionals who prioritize portability and safety in their tools.