5 Best Cordless Grinder – Honest Review 2021

Looking for the Best Cordless Grinder?

In A Rush? Check Out The Number 1 Pick Here:

Sale
Dewalt DCG412B 20V MAX* Lithium Ion 4-1/2” grinder (Tool Only)
6,451 Reviews
Dewalt DCG412B 20V MAX* Lithium Ion 4-1/2” grinder (Tool Only)
  • 8,000 rpm motor provides high power for cutting and grinding applications for the angle grinder
  • DEWALT grinder comes with Quick-Change Wheel Release allowing tool free wheel removal without need for a wrench
  • Tool-free guard of the metal grinder allows for quick and easy guard adjustments/positioning
  • 2-finger trigger switch with lock-off button for convenient activation and easier gripping
  • 2-position side handle offers greater control, comfort and versatility

Angle Grinder is an important tool for home improvement as well as for professionals. Initially, professionals were comfortable with the electric grinder options. But with the enhancement and improvement in technology, these grinders are also available in cordless form. If you are looking for the best cordless grinder, you can check out different features, pros, and cons and get the one that suits your requirement. 

Best Seller
Dewalt DCG412B 20V MAX* Lithium Ion 4-1/2” grinder (Tool Only)
Editor Choice
Makita XAG20Z 18V LXT BL 4-1/2”/ 5" Paddle Cutoff/Angle Grinder
Best Budget
Bosch GWS18V-45 18V 4-1/2 In. Angle Grinder (Bare Tool)
Dewalt DCG412B 20V MAX* Lithium Ion 4-1/2” grinder (Tool Only)
Makita XAG20Z 18V LXT BL 4-1/2”/ 5" Paddle Cutoff/Angle Grinder
Bosch GWS18V-45 18V 4-1/2 In. Angle Grinder (Bare Tool)
Best Seller
Dewalt DCG412B 20V MAX* Lithium Ion 4-1/2” grinder (Tool Only)
Dewalt DCG412B 20V MAX* Lithium Ion 4-1/2” grinder (Tool Only)
Editor Choice
Makita XAG20Z 18V LXT BL 4-1/2”/ 5" Paddle Cutoff/Angle Grinder
Makita XAG20Z 18V LXT BL 4-1/2”/ 5" Paddle Cutoff/Angle Grinder
Best Budget
Bosch GWS18V-45 18V 4-1/2 In. Angle Grinder (Bare Tool)
Bosch GWS18V-45 18V 4-1/2 In. Angle Grinder (Bare Tool)

How Can You Get the Best Cordless Grinder?

It is not difficult to get the best cordless grinder if you know the factors you need to check out. 

The Material:

Check out the material of the grinder so that the grinder remains durable with you.

The Motor:

You will require a motor depending upon the purpose for which you are getting the grinder.

The Battery:

One of the most important factors that you should not skip out in a cordless grinder is the battery. 

The Features:

Have a look at the features or accessories you are getting in the cordless grinder you are buying.

The Reviews:

Do not forget to check out the reviews from different customers about the product and the brand. 

The Warranty:

It is always a great idea to get a grinder that has proper warranty support from the manufacturer.

The Price:

It is not always necessary that you have to pay a hefty amount for the best cordless grinder. You can also get several best options at an affordable cost. 

Top Options in the Best Cordless Grinder

1. Dewalt DCG412B | Best Cordless Grinder

Sale
Dewalt DCG412B 20V MAX* Lithium Ion 4-1/2” grinder (Tool Only)
6,451 Reviews
Dewalt DCG412B 20V MAX* Lithium Ion 4-1/2” grinder (Tool Only)
  • 8,000 rpm motor provides high power for cutting and grinding applications for the angle grinder
  • DEWALT grinder comes with Quick-Change Wheel Release allowing tool free wheel removal without need for a wrench
  • Tool-free guard of the metal grinder allows for quick and easy guard adjustments/positioning
  • 2-finger trigger switch with lock-off button for convenient activation and easier gripping
  • 2-position side handle offers greater control, comfort and versatility

Dewalt DCG412B is the best option in this list due to the several features that it offers. Coming from a reliable brand Dewalt, this grinder is surely a reliable option.

Pros
  • You can use this grinder for several difficult applications.
  • It also has the feature of Quick Change.
  • The grinder runs at 8000 RPM.
  • The handle comes with an ergonomic design and a trigger switch.
  • You can use this versatile grinder with different wheel options. 
Cons
  • The price is only a bit expensive.

Dewalt-DCG412B

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2. Makita XAG20Z | Reliable Cordless Grinder

Makita XAG20Z 18V LXT BL 4-1/2”/ 5' Paddle Cutoff/Angle Grinder
275 Reviews
Makita XAG20Z 18V LXT BL 4-1/2”/ 5" Paddle Cutoff/Angle Grinder
  • Electric brake stops the grinding or cut-off wheel in 2 seconds or less for maximum productivity
  • Active feedback-sensing technology (aft) turns the motor off if rotation of the wheel is suddenly forced to stop
  • Automatic speed change technology adjusts speed and torque during operation for optimum performance
  • The BL Brushless motor eliminates carbon brushes, enabling the BL motor to run cooler and more efficiently for longer life
  • Variable speed control dial allows Manual RPM adjustment (3, 000-8, 500) to match the speed to the application

Makita XAG20Z is one of the most powerful and reliable options in this category. Makita is another worth trusting brand for grinders. 

Pros
  • The brushless motor in the grinder offers an efficient result.
  • The rubber body comes in a slim shape for better grip.
  • You stay safe with the help of the feature of anti-start.
  • Be safe also with the automatic adjustment of the torque and speed.
  • The electric brake is another safety feature in the grinder.
Cons
  • It is not a light weighted grinder. 

Makita-XAG20Z

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3. Bosch GWS18V |Premium Choice

Bosch GWS18V-45 18V 4-1/2 In. Angle Grinder (Bare Tool)
242 Reviews
Bosch GWS18V-45 18V 4-1/2 In. Angle Grinder (Bare Tool)
  • LONGEVITY: The Bosch GWS18V-45 18V Angle Grinder delivers all-day grinding and cutting power. It’s designed for a longer tool life with Bosch's Electronic Cell Protection and Electronic Motor Protection.
  • POWER: The grinder includes a powerful four-brush motor design with 0-10,000 no-load rpm to handle the toughest cutting and grinding jobs.
  • CONTROL: The tool features a two-position Vibration Control side handle, for comfortable control, less user fatigue and smoother grinding.
  • SECURE: For user protection, this cordless grinder was engineered with a tool-less quick-change, burst-resistant wheel guard and restart protection to avoid accidental startup.
  • PRECISION: The Bosch GWS18V-45 18V Angle Grinder provides outstanding cutting ability and is optimized for metal applications.

Bosch GWS18V is a power-packed grinder that you can have for your work. Whether it is a home-based activity or a professional task, this grinder can be a great help. 

Pros
  • The 6 amp motor delivers a speed of 10,000 rpm.
  • You can use this, especially for metal cutting purposes.
  • The design is very much durable and reliable.
  • It is great for heavy-duty activities, too, along with other tasks. 
Cons
  • You have to get the battery and the charger separately. 

Bosch-GWS18V

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4. Ryobi ZRP421 | Best Value for Money Cordless Grinder

Sale
Ryobi ZRP421 ONE Plus 18V Cordless 4-1/2' Angle Grinder (Bare Tool)
476 Reviews
Ryobi ZRP421 ONE Plus 18V Cordless 4-1/2" Angle Grinder (Bare Tool)
  • Brand New in box. The product ships with all relevant accessories

Ryobi ZRP421 is truly value for money as it has several features and is available at a reasonable price. 

Pros
  • It has a solid construction and has the feature of a trigger switch.
  • It has several advanced features such as GripZone and a tool-free guard.
  • It has a warranty of 3 years.
  • The tool is also compatible with the battery range of O+. 
Cons
  • It is not a very powerful grinder.  

Ryobi-ZRP421

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5. Skil 20V | Best Budget Cordless Grinder

Skil 20V 4-1/2 Inch Angle Grinder, Includes 2.0Ah PWRCore 20 Lithium Battery and Charger - AG290202
201 Reviews
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.

Skil 20V is another reliable grinder from a reliable brand Skil. Not just is this tool reliable, but it is also one of the best budget-friendly options available.

Pros
  • Cost-effectiveness is the very first pros of this tool.
  • The side handle of the grinder is quite comfortable for a better grip.
  • You can start the motor with a soft touch.
  • The weight is distributed throughout the body to offer better control.
Cons
  • This budget-friendly grinder is not good for heavy-duty applications. 

Skil-20V

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FAQs:

Q1. What should I see in a cordless grinder for beginners?

Answer: When buying a cordless grinder for beginners, check for the features such as a brushless motor and the lithium battery. 

Q2. Can a budget-friendly cordless grinder offer a reliable performance?

Answer: Of course, a budget-friendly grinder can also offer a reliable performance if you have checked through the product’s features. 

Verdict:

When you search for the best cordless grinder, you can develop several options, such as the ones mentioned in the list above. From the list, if you are searching for the best option, you can surely go with Dewalt DCG412B 20V MAX Lithium-Ion 4-½” grinder. 

SaleBestseller No. 1
DEWALT DCG413B 20V MAX Brushless Cut Off Tool/Grinder (Tool Only)
6,429 Reviews
DEWALT DCG413B 20V MAX Brushless Cut Off Tool/Grinder (Tool Only)
  • 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
Cordless Brushless Angle Grinder Kit,9800RPM, 4-1/2 Inch,with 20V 4.0Ah Lithium-Ion Battery & Fast Charger, 2-Position Adjustable Auxiliary Handle, Electric Brake, 5 Cutting Wheels, 5 Grinding Wheels
31 Reviews
Cordless Brushless Angle Grinder Kit,9800RPM, 4-1/2 Inch,with 20V 4.0Ah Lithium-Ion Battery & Fast Charger, 2-Position Adjustable Auxiliary Handle, Electric Brake, 5 Cutting Wheels, 5 Grinding Wheels
  • 🍁【High performance brushless angle grinder】Cordless Brushless angle grinder. The 9800 rpm high-performance motor provides high output and output speeds for milling applications. Brushless motor technology avoids pressure and energy losses .No need to be near the wall outlet, it comes with a battery power supply and can work quickly without having to unplug the extension cord,easy to work in a narrow, narrow areathe operating.
  • 🍁【Maximum 9800 RPM & Ergonomic Design】9800 RPM motor provides higher power for grinding metal, and cutting tile, rebar and concrete. Rubberized and ergonomic 2-position grip handle increases comfort on the job for any workshop, service garage, auto repair, or home hobbyist.
  • 🍁【WIRELESS FLEXIBILITY】Compared with corded grinder, cordless grinder is not restricted by power socket and space, ensuring maximum flexibility. Portable, without restrictive power cables, suitable for indoor and outdoor use. 20V 4.0Ah large capacity rechargeable lithium ion battery.And 1 hour fast charger can help refill the battery quickly after power consumption. It is perfect for outdoor work.
  • 🍁【Operation Safe operation】 Safe and durable. The built-in overcharge and overheat protection is to protect the battery. Quick release cover can prevent sparks. When the current is excessive, it automatically turns off the power and generates protection to protect the motor and reduce losses. In addition, innovative ventilation holes help prevent dust and dirt, improving performance.
  • 🍁【1 YEARS PROMISE OF QUALITY】Each Cut-Off Tool Kit comes with 1 * Vpment Brushless Angle Grinder, 10*Sandpaper; 5*Metal Cutting Wheel; 5*Grinding Wheel; 1*Wood Cutting Wheel; 1*Hook&Loop Backing Plate; 1*Carrying Bag; 1*Fast Charger; 1*Battery; 1*Wrench and 1 × quality promise card. Vpment Offers a 1-YEAR QUALITY PROMISE for its products, please contact us if you encounter any questions/concerns about anything.
SaleBestseller No. 3
Dremel 7300-PT 4.8V Cordless Pet Dog Nail Grooming & Grinding Tool, Safely & Humanely Trim Pet & Dog Nails, Grey
22,800 Reviews
Dremel 7300-PT 4.8V Cordless Pet Dog Nail Grooming & Grinding Tool, Safely & Humanely Trim Pet & Dog Nails, Grey
  • Pet nail groomer and grinder - This rotary tool is a pet nail groomer and grinder that offers a safe, effective, less stressful alternative to using clippers on your dog’s nails. Material: High density plastic. Battery chemistry: Nickel-Cadmium (NiCd).
  • Variable speed - Two rotation speeds let you safely and carefully grind the nails of your dog or pet in stages. Battery-powered device uses a 60-grit sanding drum to comfortably trim nails in a manner that is designed to be harmless and humane.
  • Lightweight - The lightweight, cordless rotary tool works with two speed settings 6,500 and 13,000 RPM and an array of Dremel sanding drums and bands to give you full control even at the fastest speed.
  • Battery - The 7300-PT 4.8V rotary tool is backed by a two-year warranty, 3-hour battery charge, and works with a 755-01 4.8 volt battery.
  • Accessory change - In order to insert the bit into the tool, the user must first unscrew the top in order for the collect to expand, and once the bit is inserted, the user would then tighten the top to secure the bit.
Bestseller No. 4
DmofwHi Cordless Coffee Grinder Electric, Type-C Rechargeable,200W Electric Spice Grinder with Stainless Detachable Bowl, Battery Coffee Bean Grinder for Nuts, Grains, and,75g /12 Cups-White
48 Reviews
DmofwHi Cordless Coffee Grinder Electric, Type-C Rechargeable,200W Electric Spice Grinder with Stainless Detachable Bowl, Battery Coffee Bean Grinder for Nuts, Grains, and,75g /12 Cups-White
  • 【A Cordless Coffee Grinder for Your Traveling】~ DmofwHi electric coffee grinder are designed of cordless, and usb rechargeable.The Cordless coffee bean grinder comes with 2000mAh large capacity for repeated usage. A battery indicator of the portable coffee blade grinder help you check the battery whenever you grind.Put the compact white coffee grinder into your suitcase,and enjoy the quality coffee when traveling.
  • 【Grind More Than Just Coffee Bean】~ 200 watts of power makes DmofwHi wireless espresso bean grinder not only just a coffee bean grinder,but also an electric spice grinder for other dried ingredient,such as nuts ,grains,salt...A 170ml removable grinding cup can provide you enough ground coffee to make 12 cups of coffee in one time.
  • 【Gets Evenly Coffee Powder in 15 seconds】~ Simply pour the beans in the bowl of the electric coffee grinder and put the lid on, pushing down the lid to activate grinding.You will get a evenly ground coffee in a fast way.You can monitor the desired coffee powder as you like. 6 seconds for coarse powder, 10 seconds for medium powder while 15 seconds for fine powder.A transparent lid of the coffee grounder helps observed to consistency of the grinds
  • 【Food Grade 304 Stainless Steel Blade and Bowl】~ DmofwHi electronic coffee bean grinder comes with Food grade 304 stainless steel grinding blade and removable bowls that has the advantage of material safety,durability,superior,grinding performance ,and easy cleaning.The detachable cup of the spice grinder can be remove from the motor and directly rinse.A Specialized brushes of the grinder for spices and seeds that make cleaning easier for you.
  • 【Grind Quietly in the morning】~ If noise is an issue for you or your household, Dmofwhi cordless coffee grinder will be a welcomed addition to your morning routine.The electric coffee blade grinder equips with a quiet motor ,you don’t have to worry create too much noise and disturb your family when grinder fresh ground coffee in the early morning .
SaleBestseller No. 5
Milwaukee 2680-20 M18 18V Lithium Ion 4 1/2 Inch Cordless Grinder with Burst Resistant Guard and Paddle Switch Design
1,126 Reviews
Milwaukee 2680-20 M18 18V Lithium Ion 4 1/2 Inch Cordless Grinder with Burst Resistant Guard and Paddle Switch Design
  • PADDLE SWITCH: You can activate this grinder easily, even when you’re wearing thick work gloves, thanks to the paddle switch design
  • DEBRIS BAFFLES: An “L” shape molding near the grinding wheel picks up debris and prevents it from clogging up the tool’s internal components
  • TOOL-FREE GUARD: The guard is easily adjustable. All it takes is the push of a button, and you can have the guard adjusted for a variety of cutting applications at different angles
  • 3-POSITION SIDE HANDLE: Work with maximum stability with the help of the plastic handle, included in this kit
  • M18 COMPATIBLE: This Milwaukee power tool works with M18 18v lithium ion Milwaukee batteries. Compatible models include the 48-11-1860, 48-11-1850, 48-11-1828, and 48-11-1815, 48-11-1840, 48-11-1820

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