Best Cordless Grinder in 2023 (Top 10 & Buying Guide)

Sometimes it might be quite difficult to find the best cordless grinder. With every niche market offering so many different products, it makes sense that this is the case.

Unfortunately, this very fact can make it incredibly difficult to find the item that best suits your needs, which is why we’ve put together this cordless grinder buying guide.

Quick Picks:

The 10 Top Cordless Grinder Reviews:

SaleBestseller No. 1
DEWALT 20V MAX* Angle Grinder Tool, Tool Only (DCG413B)
  • Brushless motor of the angle grinder requires no brush changes.
  • DEWALT grinder's brake stops wheel in 2 seconds or less on average
  • Kickback Brake engages when a pinch, stall, or bind-up event is sensed and the electronic brake engages with maximum force to quickly stop the wheel, reduce the movement of the metal grinder and shut the grinder off.
  • Features E-Switch Protection - When the ON/OFF trigger switch has a no-volt release function. In the event of a power outage or other unexpected shut down, the trigger switch will need to be cycled (turned off and then on) to restart tool.
  • Two stage trigger requires two actions to activate tool.
Bestseller No. 2
PORTER-CABLE 20V MAX* Angle Grinder Tool, 4-1/2-Inch, Tool Only (PCC761B)
  • High performance motor of angle grinder produces 8,500 rpm for aggressive cutting, removal and finishing
  • Cast metal gear housing helps dissipate heat during extended use of metal grinder
  • Contoured Overmolded Handle of the hand grinder is optimized for increased comfort
  • Spindle lock allows for quick and easy wheel changes
  • 3-Position Side Handle provides control in multiple positions
Bestseller No. 3
Makita XAG04Z 18V LXT® Lithium-Ion Brushless Cordless 4-1/2” / 5" Cut-Off/Angle Grinder, Tool Only
  • Automatic Speed Change technology adjusts speed and torque during operation for optimum performance
  • Active Feedback-sensing Technology (AFT) turns the motor off if rotation of the wheel is suddenly forced to stop
  • The BL Brushless Motor eliminates carbon brushes, enabling the BL Motor to run cooler and more efficiently for longer life
  • Efficient BL Brushless motor is electronically controlled to optimize battery energy use for up to 50% longer run time per charge
  • The electronically-controlled BL Brushless Motor efficiently uses energy to match torque and RPM to the changing demands of the application
Bestseller No. 5
Cordless Angle Grinder, Mini 12.6V Battery Brushless Power Motor 19500 tr/min for Metal Wood Polishing, Thin Steel, Pipe, Plastic Cutting, Hand Cut Off Electric Grinding Tool (2 Batteries,4 discs 3” )
  • 【Safe SMALL COMPACT POWERFUL 】: The wireless angle grinder is equipped with a safe and powerful brushless DC motor, and the no-load speed can reach 19 500 tr/min. The protective cover of this fan type cordless angle grinder can prevent sparks and metal chips from splashing on you during use, thus protecting your personal safety.
  • 【Handy DESIGN 】: This small cordless angle grinder weighs only 0.7kg. It is easy to use and will not be tired after a long time of use. The wireless angle grinder and all its accessories are perfectly packaged in a 24 * 19.5 * 13.5cm canvas bag, weighing only 0.7kg, which is convenient to carry.
  • [Wide range of uses] CUT, SAND, POLISH, SHARPEN AND TILE GROUT REMOVAL. Two 76mm cutting discs, sharp and durable, can be used for cutting floors, tiles, PVC pipes, and cutting and polishing various steels. Two 76mm thick wear-resistant disc compartments can be used for polishing the surface and edges of wood boards, metal rust removal, old paint and rough wood leveling.
  • 【2*1500 mAh LONGER BATTERY】: The cordless angle grinder come with a backup battery, Two long-life and high-capacity batteries enable you to use the small angle grinder continuously for a long time. The 1500mAH Battery is featured with charging, discharging, and high temperature protection, which makes charging safe and enhanced durability. we If the battery is overheated after prolonged use, please let the machine take a break for safety.
  • 【EASY to OPERATION】: We have attached an instruction manual and use video, helping you quickly install and use our mini angle grinder. A few steps are in place, you can quickly start your work.
Bestseller No. 6
DEWALT 20V MAX* XR Angle Grinder with Kickback Brake, Slide Switch, 4-1/2-Inch, Tool Only (DCG405B)
  • Brushless motor of the angle grinder requires no brush changes.
  • DEWALT grinder's brake stops wheel in 2 seconds or less on average
  • Kickback Brake engages when a pinch, stall, or bind-up event is sensed and the electronic brake engages with maximum force to quickly stop the wheel, reduce the movement of the metal grinder and shut the grinder off.
  • Power Loss Reset prevents accidental restarts following a power disruption when the tool is left in the "on" position.
Bestseller No. 7
Amazon Brand - Denali by SKIL 20V Cordless Angle Grinder Kit with 4.0Ah Lithium Battery and 2.4A Charger
  • Cross-compatible with all SKIL PWRCORE 20 tools, batteries, and chargers
  • Cordless electronic grinder kit for DIY projects like grinding metal, cutting tile, sanding wood, and more
  • Includes a 20V small 4-1/2-inch cordless angle grinder, Denali by SKIL 20 4.0Ah battery, 2.4A charger that fully charges a 2.0Ah battery in 60 minutes and a 4.0Ah battery in 100 minutes, grinding disc, grinding guard, wrench, and wrench-storage side handle
  • 3-position side handle allows for choosing the best handle placement for the task
  • On and off lock switch; lock on for extended use; lock off to prevent accidental starts
SaleBestseller No. 8
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)
  • Paddle Switch Design for Increased Comfort and Ease-Of-Use when Operating in Various Positions
  • Tool-Free Guard Adjustment for faster guard installations and adjustments
  • Tool-Free Accessory Changes with Integrated FIXTEC Nut Technology
  • Electronic Clutch provides Kickback Protection
  • 5/8 in. - 11 Spindle for Use with Common Grinding Accessories
SaleBestseller No. 9
Skil 20V 4-1/2 Inch Angle Grinder, Includes 2.0Ah PWRCore 20 Lithium Battery and Charger - AG290202
  • CUT, SAND, POLISH AND SHARPEN—Use this cordless grinder for a variety of DIY tasks including cutting tile, grinding metal, sanding, polishing, sharpening and more.
  • LONGER RUN TIME & BATTERY LIFE—The PWRCore 20 Lithium Battery has an innovative temperature management system to keep battery cool and powering on through your project
  • 3-POSITION SIDE HANDLE—Choose the positioning that works best for you and the task at hand
  • DUAL FUNCTION LOCK-ON SWITCH—Prevents accidental start up and locks on for convenient prolonged use.
  • ENHANCED CONTROL—An easier and safer start.
Bestseller No. 10
Cordless Angle Grinder,Cordless Grinder w/21V 6.0Ah Li-Ion Battery & Charger,Brushless Motor, 4-1/2'' Blade, Quick-Change Wheel Guard, 2-Position Handle, Battery Grinder Tool set
  • [High-power brushless motor]:Compared with the traditional carbon brush motor, our grinder power tool will give you a better working experience. maximum rotational speed is 8200‎RPM,Wattage is ‎850 watts,the brushless motor has longer use life, Stronger motivation smaller loss of battery energy,lower machine running noise level and much safer working conditions
  • [High Capacity Battery] Our angle grinder cordless equipped with 21V 2000mA 6.0Ah high-capacity lithium battery and Fast chargers,Battery is featured with charging and discharging protection, which makes charging extremely safe and battery more durable. 6.0Ah large capacity can extend working time both indoors or outdoors.
  • [Three-Speed Mode]:The angle grinder is equipped with three-speed modes, you can choose different cutting speeds according to your work requirements. Rubberized and ergonomic 2-position grip handle increases comfort on the job for any workshop, service garage, auto repair, or home hobbyist.
  • [Quick-Change Wheel Guard] Tool-free guard design allows for quick and easy guard adjustments/positioning. During operation, the protective cover of the portable grinder will prevent sparks and metal chips during use to protect you from injury.
  • [Packaging And After-Sales]:Power angle grinders kit includes a 21V 2000mA 6.0Ah lithium battery, a Fast Charger, 2*Grinding Wheel, 2* Cutting Wheel, 1*Wrench and A Plastic Box. You can contact us if you have any questions during use, we will reply you within 24 hours, hope you have a good shopping experience

Last update on 2023-02-02 / Affiliate links / Images from Amazon Product Advertising API

How to find the best cordless grinder?

Here, we’ll be going over a number of factors that you can use to ensure that you’re purchasing the best cordless grinder for you.

Regardless of which type of item you’re looking to buy, chances are that there are existing buying guides on the internet, all of which aim to give you good cordless grinder recommendations.

Despite these recommendations, however, it’s always a good idea to do your own research. In addition to this research, asking yourself the following questions is also super helpful:

  • What features does the cordless grinder need to have to be perfect for my needs?
  • What is my budget?
  • Do I need to purchase a certain brand?

Once you’ve answered these questions and have a good idea of what you’re looking for and the buying process becomes much easier. Keep in mind that when looking for the best product, there’s no need to rush. In fact, very rarely are the ideal products found by choosing the first one you see or by basing your decisions on only one factor. Take your time and enjoy the process!

Now, with the answers to the previous questions in mind, we urge you to use our upcoming buying guide for cordless grinder to find what you’re looking for:


In some cases, the brand of cordless grinder is very important. For example, if you’re looking for an item that works in tandem with another, you might very well need both products to be the same brand. If this is the case, it’s vital to pay attention to this factor, as choosing the wrong product can mean the difference between wasting your money and buying a great product that functions as it should.


The features in any given cordless grinder are important because they can dictate which version of an item you need and how much money you need to spend. Consider all the key features that you want your item to have and don’t settle for anything that doesn’t check at least ¾ of your boxes.


Customer reviews about cordless grinder are crucial – especially when you’re buying a product that costs a lot of money or serves a big importance. Luckily, most products can be found online, which means that it’s common for there to be scores of customer reviews from those who have already purchased any given product.

Pay attention to these reviews. Take note of the pros and cons that they mention, and factor these into your big decision. In some cases, you’ll be forced to sacrifice one con in order to gain a particular pro, but being aware of the potential con is going to be beneficial in either case.


Of course, quality is key. You don’t want to purchase a low-quality product. If you do, you run the risk of your item breaking, not working properly, or otherwise proving to be very disappointing, as well as a waste of money.

You can compare cordless grinder quality by researching what your potential purchases are made from, contrasting the individual items against each other to discern which one is made of the best materials.


Warranty isn’t always going to be important, but it definitely can be. This is especially true if the item in question is tech-related or expensive. A good warranty will be valid for an extended time after purchase and cover a variety of problems ranging from item defects to random accidents, water damage, and other miscellaneous events that could ruin your product.


The quest to find the best cordless grinder can be daunting – but it doesn’t have to be. It can be made much easier by asking yourself a few simple questions and then thinking critically about the items you want to buy. Consider their features, quality, brand, warranty, and customer reviews and you’re more likely to make a great purchase.