Best Lithium-Ion Power Grinders of 2025

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Lithium-Ion Power Grinders are an excellent choice for those looking for a powerful and efficient tool for their grinding needs. These grinders are powered by rechargeable lithium-ion batteries, making them cordless and portable. They are designed to deliver high performance and have a long battery life, allowing users to work for extended periods without interruption. Lithium-Ion Power Grinders come in various sizes and types, from small handheld grinders to larger benchtop models, making them suitable for a wide range of applications. They are perfect for grinding, cutting, and sanding a variety of materials, including metal, wood, and concrete.
At a Glance: Our Top Picks
Top 8 Lithium-Ion Power Grinders
Milwaukee 2880-20 M18 FUEL Brushless Lithium-Ion 4-1/2 in. / 5 in. Cordless Small Angle Grinder
The Milwaukee 2880-20 M18 FUEL Brushless Lithium-Ion 4-1/2 in. / 5 in. Cordless Small Angle Grinder is a powerful and versatile tool designed for comfort and ease-of-use. It features a Paddle Switch Design for increased comfort and ease-of-use when operating in various positions, a Tool-Free Guard Adjustment for faster guard installations and adjustments, and a Tool-Free Accessory Changes with Integrated FIXTEC Nut Technology. It also has an Electronic Clutch for kickback protection and a 5/8 in. - 11 Spindle for use with common grinding accessories.
Dewalt DCG412B 20V MAX* Lithium Ion 4-1/2” Grinder
The Dewalt DCG412B 20V MAX* Lithium Ion 4-1/2” Grinder is a powerful angle grinder with an 8,000 rpm motor that provides high power for cutting and grinding applications. It features a Quick-Change Wheel Release that allows for tool-free wheel removal without the need for a wrench. The tool-free guard allows for quick and easy guard adjustments/positioning, while the 2-finger trigger switch with lock-off button provides convenient activation and easier gripping. Additionally, the 2-position side handle offers greater control, comfort, and versatility.
Milwaukee M12 FUEL Right Angle Die Grinder
The MILWAUKEE 1/4" M12 FUEL Right Angle Die Grinder has a cordless design that provides up to .3 HP performance, making it the first cordless right angle die grinder that delivers the performance and size and speed professional service mechanics demand. This die grinder is equipped with Milwaukee POWERSTATE Brushless Motor Technology that delivers 20% more power than pneumatic competition. With 4-mode RPM control and best-in-class size, it is easy to fit in tight spaces and offers greater mobility and access. It also provides optimum performance with 2" accessories.
18V LXT® Lithium‑Ion Brushless Cordless Angle Grinder, Tool Only
The 18V LXT® Lithium‑Ion Brushless Cordless Angle Grinder is a compact and ergonomic tool that offers a soft start for smooth start-ups, anti-restart protection, and electronic controls for efficient and optimized performance. The Active Feedback-sensing Technology (AFT) and Automatic Speed Change technology ensure maximum safety and performance during operation. The soft rubberized grip provides increased comfort on the job, while the Rapid Optimum Charger optimizes battery life by controlling current, voltage, and temperature.
Milwaukee M18 FUEL 5 in. Flathead Braking Grinder
The Milwaukee Flathead Grinder is a powerful and versatile tool that allows you to access tight spaces with ease. With its 11A corded power, this grinder delivers exceptional performance for various grinding tasks. The RAPIDSTOP Brake feature ensures quick and safe stops, stopping most wheels in less than 2 seconds. Its low profile, flathead design provides even more access to tight spaces where a traditional 5 in. grinder would not be able to reach. Whether you need to grind in confined areas or tackle tough materials, the Milwaukee Flathead Grinder is designed to provide convenience and efficiency for all your grinding needs.
Milwaukee 2680-20 M18 18V Lithium Ion Cordless Grinder
The Milwaukee 2680-20 M18 18V Lithium Ion Cordless Grinder is a powerful and easy-to-use grinder that is perfect for industrial applications. It features a paddle switch design that allows for easy activation, even when wearing thick gloves. The grinder also has debris baffles that prevent debris from clogging up the tool's internal components, an easily adjustable tool-free guard, and a 3-position side handle for maximum stability. This Milwaukee power tool works with M18 18v lithium ion Milwaukee batteries and has a 4-pole motor that delivers maximum power when cutting or grinding. Additionally, this grinder has overload protection and L-shape vents that keep debris from entering the tool and damaging internal components.
Makita XAG26Z Angle Grinder
The Makita XAG26Z Angle Grinder is a powerful and efficient tool that will make your grinding and cutting tasks a breeze. With the X-LOCK quick change system, you can easily change the wheels without the need for any tools. Simply snap on the new wheel and release it with the pull release lever. The BL Brushless Motor ensures a longer motor life and runs cooler, delivering a high speed of 8,500 RPM. The Active Feedback-sensing Technology (AFT) automatically turns off the motor if the wheel rotation is suddenly forced to stop, providing added safety. Additionally, the Electric Brake stops the wheel in 2 seconds or less, maximizing productivity. With the Automatic Speed Change technology, the grinder adjusts speed and torque during operation for optimal performance. The Makita XAG26Z Grinder is a reliable and convenient tool for all your grinding needs.
Grinder tool for Dewalt 20V Battery
Frequently Asked Questions (FAQs)
1. Is brushless angle grinder worth it?
In short, cordless angle grinders are incredibly beneficial due to the added degree of convenience they offer. They also have become just as functional and powerful as their corded counterparts, which makes them a fantastic choice for both the pros and DIYers.
2. Are brushless grinders better?
Are Brushless Grinders Better? To put it bluntly, yes! Brushless motors utilized in cordless power tools are way more efficient than brushed motors and require zero maintenance.
3. Which is best cordless angle grinders?
DEWALT MAX Angle Cordless Grinder Tool Our topmost pick is this angle cordless grinder tool, which comes with a powerful and high-performance 850 MWO brushless motor. Not only does it offer a quiet and smooth performance, but its brushless feature also eliminates the need for brush changes.
During our lithium-ion power grinder research, we found 24 lithium-ion power grinder products and shortlisted 8 quality products. We collected and analyzed 110,733 customer reviews through our big data system to write the lithium-ion power grinders list. We found that most customers choose lithium-ion power grinders with an average price of $112.34.
The lithium-ion power grinders are available for purchase. We have researched hundreds of brands and picked the top brands of lithium-ion power grinders, including Milwaukee, DEWALT, Makita, Bohemen. The seller of top 1 product has received honest feedback from 170 consumers with an average rating of 4.7.

Harry Stack owns a small hardware store, his career landed him a depth of knowledge in categories such as tools, equipment, machinery and hardware. In his spare time, he usually repairs furniture, safes and appliances, and he knows how to make simple repairs to plumbing or electrical fixtures. His hobbies also include woodworking and fishing.