10 Best Cordless Grinder 2025 in the United States

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 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 DEWALT 20V MAX Angle Grinder and Die Grinder set offers a powerful and versatile solution for various grinding tasks. This set includes two tools: the DCG413 Small Angle Grinder and the DCG426 Variable Speed Die Grinder, both powered by a 20V MAX XR 5Ah lithium-ion battery. This battery provides ample power and runtime, making it suitable for extended use without frequent recharges. Additionally, the included 8 Amp fast charger ensures quick recharging times, so you can get back to work promptly.

The DCG413 features a 4.5-inch disc size, which is standard for most angle grinders and allows for compatibility with a wide range of grinding and cutting discs. The kickback brake is a notable safety feature, stopping the wheel in 2 seconds or less to prevent accidents. The two-stage trigger adds an extra layer of safety by requiring two actions to activate the tool. Meanwhile, the brushless motor extends the tool's lifespan and enhances efficiency.

For the DCG426 Die Grinder, the variable speed trigger allows for precise control, reaching speeds of up to 25,000 RPM. The dual-position rocker switch enables multiple handle grasping points, improving ergonomics and user comfort. Both tools are lightweight and compact, with the total weight of the set being approximately 11.71 pounds. However, some users may find the combined weight slightly cumbersome for prolonged use. DEWALT is a reputable brand known for its durable and reliable tools, and this set is no exception.