Best Lithium-Ion Power Grinders of 2025

Harry Stack Avatar
Harry Stack
Last Updated: Jan 9, 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

Milwaukee 2880-20 M18 FUEL Brushless Lithium-Ion 4-1/2 in. / 5 in. Cordless Small Angle Grinder Cover #TOP 1
Milwaukee 2880-20 M18 FUEL Brushless Lithium-Ion 4-1/2 in. / 5 in. Cordless Small Angle Grinder
ftb score rating icon 9.9
Dewalt DCG412B 20V MAX* Lithium Ion 4-1/2” Grinder Cover #TOP 2
Dewalt DCG412B 20V MAX* Lithium Ion 4-1/2” Grinder
ftb score rating icon 9.8
Milwaukee M12 FUEL Right Angle Die Grinder Cover #TOP 3
Milwaukee M12 FUEL Right Angle Die Grinder
ftb score rating icon 9.6

Top 8 Lithium-Ion Power Grinders

#TOP 1

Milwaukee 2880-20 M18 FUEL Brushless Lithium-Ion 4-1/2 in. / 5 in. Cordless Small Angle Grinder

2880-20
Chrome
Large
Milwaukee 2880-20 M18 FUEL Brushless Lithium-Ion 4-1/2 in. / 5 in. Cordless Small Angle Grinder Cover
Milwaukee 2880-20 M18 FUEL Brushless Lithium-Ion 4-1/2 in. / 5 in. Cordless Small Angle Grinder with No-Lock Paddle Switch (Tool Only)

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.

What We Like
Powerful and versatile
No lack of power
Portable and convenient
#TOP 2

Dewalt DCG412B 20V MAX* Lithium Ion 4-1/2” Grinder

DCG412B
Yellow
5/8 in.
Dewalt DCG412B 20V MAX* Lithium Ion 4-1/2” Grinder Cover
DEWALT DCG412B 20V MAX* Lithium Ion 4-1/2” grinder (Tool Only)

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.

What We Like
Powerful 8,000 rpm motor for high power cutting and grinding
Quick-Change Wheel Release for tool-free wheel removal
Tool-free guard for easy and quick guard adjustments
2-finger trigger switch with lock-off button for convenient activation and easier gripping
2-position side handle for greater control, comfort, and versatility
#TOP 3

Milwaukee M12 FUEL Right Angle Die Grinder

2485-20
Red,black
1/4"
Milwaukee M12 FUEL Right Angle Die Grinder Cover
Milwaukee M12 FUEL 12V Lithium-Ion Brushless Cordless 1/4 in. Right Angle Die Grinder (Tool-Only)

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.

What We Like
Cordless design provides greater mobility and access
Equipped with Milwaukee POWERSTATE Brushless Motor Technology that delivers 20% more power than pneumatic competition
Best-in-class size makes it easy to fit in tight spaces
#TOP 4

18V LXT® Lithium‑Ion Brushless Cordless Angle Grinder, Tool Only

XAG25Z
Green,black,grey
18V LXT® Lithium‑Ion Brushless Cordless Angle Grinder, Tool Only Cover
Makita 18V LXT® Lithium‑Ion Brushless Cordless 4‑1/2" / 5" X‑LOCK Angle Grinder, with AFT®, 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.

What We Like
Compact and ergonomic design reduces operator fatigue
Active Feedback-sensing Technology (AFT) and Automatic Speed Change technology for maximum safety and performance
Soft start and anti-restart protection for smooth start-ups and longer gear life
#TOP 5

Milwaukee M18 FUEL 5 in. Flathead Braking Grinder

2886-20
Milwaukee M18 FUEL 5 in. Flathead Braking Grinder Cover
Milwaukee M18 FUEL 18-Volt Lithium-Ion Brushless Cordless 5 in. Flathead Braking Grinder with Paddle Switch No-Lock (Tool-Only)

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.

What We Like
Powerful
Versatile
Quick stops
#TOP 6

Milwaukee 2680-20 M18 18V Lithium Ion Cordless Grinder

2680-20
Black,red,white
4-1/2"
Milwaukee 2680-20 M18 18V Lithium Ion Cordless Grinder Cover
Milwaukee 2680-20 M18 18V Lithium Ion 4 1/2 Inch Cordless Grinder with Burst Resistant Guard and Paddle Switch Design

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.

What We Like
Powerful 4-pole motor
Adjustable tool-free guard
Paddle switch design for easy activation
Easily adjustable 3-position side handle
L-shape vents to prevent debris from damaging the tool's internal components
#TOP 7

Makita XAG26Z Angle Grinder

XAG26Z
Black
Makita XAG26Z Angle Grinder Cover
Makita XAG26Z 18V LXT® Lithium-Ion Brushless Cordless 4-1/2” / 5" Paddle Switch X-LOCK Angle Grinder, with AFT®, Tool Only

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.

What We Like
Quick wheel changes
Longer motor life
Enhanced safety features
#TOP 8

Grinder tool for Dewalt 20V Battery

Bohemen
DWJMJ115
Grinder tool for Dewalt 20V Battery Cover
Grinder tool for Dewalt 20V Battery,11000 RPM Electric Brushless Motor,3 Variable Speeds Grinders 4-1/2" Angle Grinder for Cutting, Griding, Polishing(Tool Only)

Features
[Powerful Brushless Motor] Say Goodbye To Traditional Brushless Motors And Experience A Higher Level Of Grinding Performance. Brushless Motors Offer Speeds Up To 9000RPM, Longer Life, Greater Power, Less Battery Energy Loss, Lower Machine Operating Noise, And Safer Working Conditions.
[Cordless Angle Grinder] Our Angle Grinder Is Powered By A DeWalt 20V Lithium-Ion Battery (battery Not Included), Which Can Save You Money On Batteries And Chargers If You Already Have Them Before.
[Use Scenario] This Cordless Grinder Is Suitable For Metal Cutting, Surface Treatment, Polishing Wood, Stripping Coatings, And Smoothing, Grinding, And Grinding Tasks On Various Materials Such As Tiles, Stones, Concrete, Bricks, Etc.
[Humanized Design] The Protective Cover Of The Side Grinder Prevents Sparks And Metal Chips During Use, Protecting You From Injury. This 4-1/2-Inch Grinder Tool Is Faster And Comes With A Spindle Lock That Allows You To Change The Wheel Disc. And The Handle Is Adjustable To Accommodate Left-Handed And Right-Handed Users, And The Comfortable Grip Will Not Feel Tired Even After A Long Time Of Use.
[For Dewalt 20V Battery] Battery Compatible Type: For 4.9 Inch (125mm) Grinding Wheel Diameter (without Cutting Blade/wheel) Angle Grinder Compatible With Dewalt 20V Battery, DCB203 DCB204 DCB206 DCB207 DCB201 DCB200 DCB182 DCB181 And More Batteries Are Not Included
Buying Guide Image

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.

Editor's Notes

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.

Written by
Harry Stack Avatar

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.