20 Best Cordless Grinder

Updated on: September 2021

Best Cordless Grinder in 2021


DEWALT DCG413B 20V MAX Brushless Cut Off Tool/Grinder (Tool Only)

DEWALT DCG413B 20V MAX Brushless Cut Off Tool/Grinder (Tool Only)
BESTSELLER NO. 1 in 2021
  • Dewalt Brushless Motor: Delivers Up to 57 Percent More Run Time over Brushed
  • No Load Speed: Max 9, 000 RPMs
  • Blade brake: brake engaged when paddle switch is released, bringing the wheel quickly to a stop.Max Watts Out:850 W
  • Warranty: backed by DEWALT 3 year limited warranty
  • Battery & Charger Sold Separately
  • Maximum initial battery voltage (measured without a workload) is 20 volts. Nominal voltage is 18

Dewalt DCG412B 20V MAX* Lithium Ion 4-1/2” grinder (Tool Only)

Dewalt DCG412B 20V MAX* Lithium Ion 4-1/2” grinder (Tool Only)
BESTSELLER NO. 2 in 2021
  • 8,000 RPM motor provides high power for cutting and grinding applications
  • Quick-Change Wheel Release allows for tool free wheel changes
  • 2-finger trigger switch with lock-off button
  • 2-position side handle for greater control, comfort & versatility
  • Battery & Charger Sold Separately
  • *Maximum initial battery voltage (measured without a workload) is 20 volts. Nominal voltage is 18

Milwaukee 2780-20 M18 Fuel 4-1/2"/5" Pad, Bare

Milwaukee 2780-20 M18 Fuel 4-1/2
BESTSELLER NO. 3 in 2021
  • POWERSTATE Brushless Motor: Delivers maximum power and up to 10X longer motor life
  • REDLINK PLUS Intelligence provides optimized performance, electronic clutch, and overload protection using total system communication between tool, battery and charger
  • REDLITHIUM XC5.0 Battery Pack (not included) provides superior pack construction, electronics, and performance to deliver 2X more run-time and more work over pack life
  • POWER TO GRIND: World’s first cordless grinder with corded performance.
  • DURABILITY: Same metal housing & gearing system as legendary high performance corded grinders
  • 100% tool free: Make all accessory changes and guard adjustments without a wrench for increased productivity
  • Paddle-switch design: Provides increased comfort and ease-of-use when operating in various positions

DEWALT DCG414T2 60V MAX 2 Battery FLEXVOLT Grinder with Kickback Brake Kit

DEWALT DCG414T2 60V MAX 2 Battery FLEXVOLT Grinder with Kickback Brake Kit
BESTSELLER NO. 4 in 2021
  • Flexible - power of corded. Freedom of cordless. The world's first battery that automatically changes voltage when you change tools.
  • Brake engages when trigger is released, stopping speeds of 1.5 seconds with standard grinding wheel
  • Kickback brake engages when a pinch, stall, or bind-up event is sensed
  • E-clutch activates in less than a tenth of a second when a pinch/stall is detected, shutting down the motor
  • 9, 000 RPM speed allows the use of 4-1/2" To 6" Wheels

KIMO 20V Brushless Cordless Angle Grinder, 4-1/2 Inch, 9000RPM w/ 4.0Ah Lithium-Ion Battery & Fast Charger, 2-Position Adjustable Auxiliary Handle, Electric Brake, 5 Cutting Wheels, 5 Grinding Wheels

KIMO 20V Brushless Cordless Angle Grinder, 4-1/2 Inch, 9000RPM w/ 4.0Ah Lithium-Ion Battery & Fast Charger, 2-Position Adjustable Auxiliary Handle, Electric Brake, 5 Cutting Wheels, 5 Grinding Wheels
BESTSELLER NO. 5 in 2021
  • 【Cordless and Connected-Ready Power】What can you do if you are not close to a wall outlet, or working in a tight, confined area? Going cordless is definitely a smart choice. Corded grinders are generally more robust, yet are noisier, and less versatile. KIMO has prepared this irreplaceably convenient cordless one with battery power for your quick job without getting extension cords out.
  • 【Efficient Brushless Motor】KIMO angle grinder has a lot of standout features, but chief among them is the brushless motor. Thanks to the all-copper and premium magnet, the operation becomes more stable and smoother. Many professionals and DIYers are heading to brushless motor to enjoy the 53.5% longer runtime and much more efficient experience.
  • 【Proudly Present KIMO Li-ion Technology】For over 25 years, KIMO has made great progress in 1,000-Charging Cycle Test that guarantees each KIMO battery is more powerful, and lives longer than others. No worries about dying cells anymore. Go with KIMO, enjoy, and accomplish more than you ever expected.
  • 【Maximum 9000 RPM & Ergonomic Design】9000 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.
  • 【26 Pcs Accessories】It is hard to determine market gimmick from the actual performance features that matter but KIMO hopes to help with that. A simple one-click order to get the most valuable tool kit, and let us prepare any accessories you need. Each Cut-Off Tool Kit comes with 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; and 1*Wrench.

PORTER-CABLE 20V MAX Angle Grinder Tool, 4-1/2-Inch, Tool Only (PCC761B)

PORTER-CABLE 20V MAX Angle Grinder Tool, 4-1/2-Inch, Tool Only (PCC761B)
BESTSELLER NO. 6 in 2021
  • High-Performance Motor produces 8,500 rpm
  • Cast metal gear housing
  • Spindle lock for quick and easy wheel changes
  • 3-Position Side Handle
  • Part of the 20V Max System

Makita XAG09Z 18V LXT Lithium-Ion Brushless Cordless 4-1/2"/5" Cut-Off/Angle Grinder

Makita XAG09Z 18V LXT Lithium-Ion Brushless Cordless 4-1/2
BESTSELLER NO. 7 in 2021
  • 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
  • Efficient BL Brushless motor is electronically controlled to optimize battery energy use for up to 50% longer run time per charge

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

Milwaukee 2680-20 M18 18V Lithium Ion 4 1/2 Inch Cordless Grinder with Burst Resistant Guard and Paddle Switch Design
BESTSELLER NO. 8 in 2021
  • 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
  • 4-pole motor delivers maximum power when cutting or grinding
  • Overload protection prevents damage to the tool and battery in abusive situations
  • L-shape vents keep debris from entering the tool and damaging internal components
  • Tool free, burst resistant guard allows for quick, easy guard adjustments
  • Tool only (batteries not included)

Ryobi P423 18V One+ Brushless 4-1/2" 10,400 RPM Grinder and Metal Cutter w/ Adjustable 3-Position Side Handle and Onboard Spanner Wrench (Battery Not Included, Power Tool Only)

Ryobi P423 18V One+ Brushless 4-1/2
BESTSELLER NO. 9 in 2021
  • ONBOARD SPANNER WRENCH: Simplify your disc replacements. This spanner is stored on the grinder, so you don’t have to worry about losing it when you’re switching discs out for multiple applications
  • 3 POSITION SIDE HANDLE: Whatever angle you’re attacking your job from, you’ll be able to get the optimal leverage with the help of the onboard plastic handle that adjusts as you need it
  • COMFORT GRIP HANDLE: A rubber overmold covering the grip keeps up the friction between the tool and your hand, allowing for precise work in slippery environments
  • TOOL-FREE GUARD ADJUSTMENT: If you need to adjust the depth or angle of your cuts to suit different materials, you can do so with the push of a button
  • ONE+ COMPATIBLE: This 18V cordless power tool from Ryobi works with the 18V batteries in Ryobi’s lineup. These models include the P100, P102, P103, P104, P105, P107, and P108

Cordless Angle Grinder, POPOMAN 20V MAX Brushless Cut-off Tool/Grinder with 4.0Ah Lithium-ion Battery, Max 10000RPM, 5pcs 5'' Max Grinding Wheel, 3-Position Auxiliary Handle, Fast charger

Cordless Angle Grinder, POPOMAN 20V MAX Brushless Cut-off Tool/Grinder with 4.0Ah Lithium-ion Battery, Max 10000RPM, 5pcs 5'' Max Grinding Wheel, 3-Position Auxiliary Handle, Fast charger
BESTSELLER NO. 10 in 2021
  • 💡【Powerful Brushless Motor】We proudly present the brand new 20V Brushless Cordless Angle Grinder by POPOMAN. Brushless means longer motor life, more power and more runtime. With less internal friction, high performance brushless copper motor allows the product to deliver up to 15%-24% more power comparing to other brushed products. Totally brings out the best performance of your job.
  • 💡【No Cord,No Limits】A high capacity 20V 4.0Ah lithium-ion battery help extend working time, equipped with power indicator and fast charger. The battery-powered cordless angle grinder is portable and convenient, perfect for outdoor work. To ensure maximum flexibility, it is compatible with all the TECCPO and POPOMAN 20V system power tools. Now you can enjoy the freedom of cordless yet to keep the power of the corded.
  • 💡【Easy to operate】3-position side Rubber Auxiliary Handle is friendly to left- or right-handed users. Quick installation and change of accessories with a wrench due to spindle lock , which allows you to work more safely and quickly. The rubber overmold Anti-Vibration Handle, easy to hold and comfortable for long-time operation.
  • 💡【Safety for using】To ensure safety, two stage trigger requires two actions to activate tool. Professional built-in overload protection design protect the battery against overload/over-discharge/overheating. When it's overload, the motor will cut off the power supply, keeping the machine durable and increasing its service life.The burst proof guard is easy to install and adjust at different angles, designed to prevent sparks and protect the fingers.
  • 💡【Accessories & 2-YEAR QUALITY PROMISE】 1 x POPOMAN Brushless Cordless Angle Grinder, 1 x 20V 4.0Ah Battery, 1 x 2.0A Fast Charger, 1 x Anti-vibration Handle, 1 x Wrench, 1 x Protective shield, 5x 5'' Max Grinding Wheel, 1 x User Manual. POPOMAN offers 2-YEAR QUALITY PROMISE. Please contact us if you encounter any questions/concerns about anything.

GETUHAND 20V 4-1/2"/ 5" Cordless Angle Grinder, Power Angle Grinder Kit with 3.0Ah Li-Ion Battery and Fast Charger, 3-Position Adjustable Auxiliary Handle, Tool Case,Cutting Wheel,Grinding Wheel

GETUHAND 20V 4-1/2
BESTSELLER NO. 11 in 2021
  • 【Cordless and Connected-Ready Power】NO CORDS.NO LIMITS. Cordless, breaking the limitations of a traditional grinder working mode and allowing you to get rid of the inconvenience of working with cords. But corded, noisier and less versatile. GETUHAND electric angle grinder has prepared this irreplaceably.
  • 【High-performance Motor &Lithium-ion Battery】Thanks to the all-copper and premium magnet, the operation becomes more stable. Portable, without restrictive power cables - suitable for indoor and outdoor use. Large Capacity 20V 3.0Ah Rechargeable Lithium-ion Battery(you can get the replacement battery from B081Q31J1Y). Overheat and overload protection prevents damage to the tool and battery in abusive situations.
  • 【Security】Exclusive U shape guard with quick adjustments lever for cutting to support more better protection for user security. Paddle switch can be activated easily and released quickly to shut off the power, that provides more safety when any accident occurred.
  • 【Heavy Duty& Ergonomic Design】Heavy duty Cast Aluminum gear head for added ruggedness and durability. Rubberized and ergonomic 3-position grip handle increases comfort on the job for any workshop, service garage, auto repair, or home hobbyist. 5/8"-11 spindle thread accepts a wide range of popular accessories.
  • 【Package Include】 Portable Cordless Angle Grinder, 1 x 3Ah Lithium-ion Battery ,1x Fast Charger ,1 x4-1/2" Disc , 1 x5" Disc, 1 x4-1/2" Cutting Wheel,1 x 4-1/2"Grinding Wheel, 1 x5"Cutting Wheel,1 x 5"Grinding Wheel,1 x Side handle ,1 x Allen wrench ,1 x Carrying Case ,1x User manual, 1x Service card.

CACOOP 20V 4-1/2'' 5'' Cordless Angle Grinder,Power Handheld Portable Angle Grinder with Lithium Battery and Charger

CACOOP 20V 4-1/2'' 5'' Cordless Angle Grinder,Power Handheld Portable Angle Grinder with Lithium Battery and Charger
BESTSELLER NO. 12 in 2021
  • 【Power Cordless Angle Grinder】20V 6.53lbs M14 cordless angle grinder provides more torque during grinding and cutting.
  • 【High-performance Motor】Built-in brushed motor angle grinder produces 8000RPM(No-load) and efficiency of the job up to 50%.
  • 【Security and Convenient Design】Comes with push-button and lock-off switch prevent accidental start-up and easy to exchange direction under the 3-position adjustable auxiliary handle.
  • 【Lithium-ion Battery】The cordless angle grinder includes 2.0Ah lithium-ion battery and 1-hour fast charger for home projects. Overheat and overload protection prevents damage to the tool and battery in abusive situations.
  • 【Package Include】 Portable Cordless Angle Grinder, 1 x 2A Lithium-ion Battery ,1x Fast Charger ,1 x Grinding Disc ,1 x Cutting Disc ,1 x Side handle ,1 x Allen wrench ,1 x Carrying Bag ,1x User manual.

Milwaukee M18 2680-21P 4-1/2" Cordless Grinder Kit (2680-20 + 48-11-1850 + Charger)

Milwaukee M18 2680-21P 4-1/2
BESTSELLER NO. 13 in 2021
  • Overload Protection- Prevents damage to the tool and battery in abusive situations
  • Debris Baffles - L-shape vents keep debris from entering the tool and damaging internal components to help increase tool life.
  • Tool Free, Burst Resistant Guard- Allows for quick, easy guard adjustments. 3-Position Side Handle- Provides optimal Control and Versatility
  • Paddle Switch Design- The only cordless cut-off /grinder in the market with a paddle switch design
  • Includes: (1) M18 4-1/2 inch Cut-Off/Grinder (Tool-Only) (2680-20), (1) M18 REDLITHIUM XC 5.0 Battery (48-11-1850), (1) M18 & M12 Multi-Voltage Charger (48-59-1812), (1) Guard

Ridgid 18-Volt OCTANE Cordless Brushless 4-1/2 in. Angle Grinder (Tool Only) (Non-Retail Packaging)

Ridgid 18-Volt OCTANE Cordless Brushless 4-1/2 in. Angle Grinder (Tool Only) (Non-Retail Packaging)
BESTSELLER NO. 14 in 2021
  • High Power Output with 10,000 RPM
  • Tool Free Guard Design: Easily change the position of the guard for increased productivity
  • Lock-Off Protection: Prevents accidental start. If the battery is installed while the tool lock is on, the tool will not operate.
  • Battery and charger sold separately
  • This item is removed from retail packaging for shipping purposes (Bulk Packaged) and will arrive in a generic box.

DEWALT DCG414B 60V Max Flexvolt Grinder with Kickback Brake (Tool Only)

DEWALT DCG414B 60V Max Flexvolt Grinder with Kickback Brake (Tool Only)
BESTSELLER NO. 15 in 2021
  • Flexible - power of corded. Freedom of cordless. The world's first battery that automatically changes voltage when you change tools.
  • Brake engages when trigger is released, stopping speeds of 1.5 seconds with standard grinding wheel
  • Kickback brake engages when a pinch, stall, or bind-up event is sensed
  • E-clutch activates in less than a tenth of a second when a pinch/stall is detected, shutting down the motor
  • 9,000 RPM speed allows the use of 4-1/2" to 6" wheels
  • Battery & Charger Sold Separately

Bosch 18V Angle Grinder, 4-1/2 In. GWS18V-45

Bosch 18V Angle Grinder, 4-1/2 In. GWS18V-45
BESTSELLER NO. 16 in 2021
  • 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.

DEWALT 20V MAX Die Grinder, Variable Speed, 1-1/2-Inch, Tool Only (DCG426B)

DEWALT 20V MAX Die Grinder, Variable Speed, 1-1/2-Inch, Tool Only (DCG426B)
BESTSELLER NO. 17 in 2021
  • Brushless motor requires no brush changes
  • Variable speed rocker switch and variable speed limit switch settings provide options to control speed of the tool
  • LED lights at the nose of the tool provide light for the work surface and area
  • Dual-position rocker switch provides user options for multiple handle grasping points

CRAFTSMAN V20 Angle Grinder, Small, 4-1/2-Inch, Tool Only (CMCG400B)

CRAFTSMAN V20 Angle Grinder, Small, 4-1/2-Inch, Tool Only (CMCG400B)
BESTSELLER NO. 18 in 2021
  • Part of the V20 cordless system
  • 4-1/2 in. Grinder powered by a high performance motor with 8, 500 RPM's for aggressive applications
  • Cast metal gear housing dissipates heat during extended use
  • Tool-free guard makes for quick and easy adjustments
  • Spindle lock for quick and easy wheel changes
  • 3 Year Limited Warranty, refer to "Warranty & Support" section below for full details

Makita XAG16Z 18V LXT BL 4-1/2”/ 5" Cut-Off/Angle Grinder

Makita XAG16Z 18V LXT BL 4-1/2”/ 5
BESTSELLER NO. 19 in 2021
  • 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

Kobalt 5-in 24-Volt Max-Volt Cordless Angle Grinder

Kobalt 5-in 24-Volt Max-Volt Cordless Angle Grinder
BESTSELLER NO. 20 in 2021
  • Kobalt 5-in cordless angle grinder and cutoff tool is ideal for cutting, sanding, polishing, sharpening or grinding
  • 24-volt max brushless motor delivers 8,500 RPM, so you can tackle even the toughest grinding and cutting applications
  • Tool-free guard allows you to quickly adjust from cutting to grinding
  • Paddle switch features a lock-off switch for easy, one-hand operation
  • 3-position auxiliary handle features anti-vibration technology that provides more comfortable use and reduces fatigue during extended periods

Tool Review: Makita 9565CV Angle Grinder

If you're looking for a quality grinder, then you should consider the Makita 9565CV. This five-inch angle grinder can be found for an average price of $150. Take a look at some of the features offered by this tool.

Motor

This angle grinder is equipped with a 12-amp motor. Thanks to the soft start feature, the tool with always start up smoothly. The grinder also has an electronic limiter. The electronic limiter will automatically stop the motor in case the worst happens to keep it from overloading and burning out.

Speed

When working with different materials, it is important to choose choose an appropriate speed. The Makita 9565CV has a variable speed dial giving you the ability to choose between five different speeds. Speed ranges from 2,800 to 10,500 RPM. This grinder is also equipped with an electronic speed control. This will help it maintain the appropriate speed even when under load.

Comfort

This angle grinder was also designed with the comfort of the end-user in mind. For starters, it only weighs four pounds. There is also a lock-on switch so you do not have to hold the trigger continuously. You also have the option of installing the side handle on either side of the grinder. For easy clamping, there is also tool-less wheel guard adjustment.

Durability

Produced by a company known for quality, you should already know that the Makita 9565CV is a very durable tool. When the grinding wheel catches or binds, the grinder's gears are at risk for damage. This isn't a problem with the 9565CV because the gears automatically disengage from the motor if this happens.

Makita also designed the tool to protect the motor and bearings. The motor is enclosed by a complex set of channels. This set of zig-zag channels creates an effective barrier while under rotation. This seals the motor off and helps prevent debris and dust from causing problems.

For only $150, you can get your hands on the Makita 9565CV angle grinder. The 12-amp motor is capable of producing speed ranges between 2,800 and 10,500 RPM. The electronic speed control ensures that the tool maintains the proper speed even when under load. The grinder is also quite comfortable to use thanks to its low weight of four pounds and the lock-on switch to operate the tool continuously.

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