DEWALT ATOMIC™ 20V MAX Brushless Cordless Right Angle Die Grinder, Variable Speed, 1/4 in. Collet, Paddle Switch, Tool Only — DCG422B*
DEWALT ATOMIC™ 20V MAX Brushless Cordless Right Angle Die Grinder, Variable Speed, 1/4 in. Collet, Paddle Switch, Tool Only — DCG422B*
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DEWALT

DEWALT ATOMIC™ 20V MAX Brushless Cordless Right Angle Die Grinder, Variable Speed, 1/4 in. Collet, Paddle Switch, Tool Only — DCG422B*

|28 ratings

Key item features

  • POWERFUL BRUSHLESS MOTOR — Delivers up to 455 MWO for demanding grinding and metalworking applications.
  • RIGHT-ANGLE DESIGN — Provides optimized maneuverability and access to tight, hard-to-reach work areas.
  • VARIABLE SPEED — Variable-speed trigger provides up to 24,500 RPM no-load speed for matching tool speed to the application.
  • DEWALT ANTI-ROTATION™ SYSTEM — Designed to quickly stop the wheel when a pinch, stall, or bind-up event is sensed, helping reduce reactionary torque.
  • ELECTRONIC BRAKE — Designed to stop the wheel in less than 1 second after the ON/OFF trigger is released.
  • PADDLE SWITCH — Lock-off paddle and no-lock-on design helps provide controlled operation.
  • COMPACT ERGONOMIC DESIGN — Slim design and compact gripping diameter help provide access to ultra-tight spaces.
  • SPINDLE LOCK — Allows quick wheel changes without requiring multiple wrenches.
  • FORWARD EXHAUST — Directs exhaust away from the user and helps prevent motor overheating.
  • TOOL CONNECT™ CHIP READY — Compatible with a DEWALT TOOL CONNECT™ Chip, sold separately, for asset-management capabilities.

Specs

Brand, DEWALTPower grinder type, Power DiePower type, BatteryArbor diameter, 0.25 inAmps, 0 AmpsVolts, 20 Volts

About this item

Product details

Complete high-powered applications in tight spaces with the DEWALT ATOMIC™ 20V MAX Right Angle Die Grinder DCG422B*. Designed for professionals who need cordless mobility and maneuverability, the DCG422B features a powerful brushless motor delivering up to 455 MWO. The right-angle configuration helps users access tight and difficult-to-reach areas while maintaining a compact, ergonomic profile. The variable-speed trigger provides a no-load speed of up to 24,500 RPM, allowing users to match tool speed to the application. The tool also features the DEWALT ANTI-ROTATION™ System, which is designed to quickly stop the wheel when a pinch, stall, or bind-up event is sensed, helping reduce reactionary torque. The switch must be cycled off and back on to restart after an anti-rotation event. An electronic brake is designed to stop the wheel in less than one second after the ON/OFF trigger is released. The paddle switch features lock-off and no-lock-on functionality to help provide controlled operation. For convenient accessory changes, the integrated spindle lock allows the wheel to be changed without multiple wrenches. The forward exhaust system directs exhaust away from the user, while the compact design helps the tool reach confined work areas. The DCG422B accepts accessories through its included 1/4-inch collet and is compatible with the DEWALT 20V MAX* battery platform. This is a tool-only configuration. Battery, charger, and grinding/cutting accessories are sold separately.
  • POWERFUL BRUSHLESS MOTOR — Delivers up to 455 MWO for demanding grinding and metalworking applications.
  • RIGHT-ANGLE DESIGN — Provides optimized maneuverability and access to tight, hard-to-reach work areas.
  • VARIABLE SPEED — Variable-speed trigger provides up to 24,500 RPM no-load speed for matching tool speed to the application.
  • DEWALT ANTI-ROTATION™ SYSTEM — Designed to quickly stop the wheel when a pinch, stall, or bind-up event is sensed, helping reduce reactionary torque.
  • ELECTRONIC BRAKE — Designed to stop the wheel in less than 1 second after the ON/OFF trigger is released.
  • PADDLE SWITCH — Lock-off paddle and no-lock-on design helps provide controlled operation.
  • COMPACT ERGONOMIC DESIGN — Slim design and compact gripping diameter help provide access to ultra-tight spaces.
  • SPINDLE LOCK — Allows quick wheel changes without requiring multiple wrenches.
  • FORWARD EXHAUST — Directs exhaust away from the user and helps prevent motor overheating.
  • TOOL CONNECT™ CHIP READY — Compatible with a DEWALT TOOL CONNECT™ Chip, sold separately, for asset-management capabilities.
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Specifications

Brand

DEWALT

Power grinder type

Power Die

Power type

Battery

Arbor diameter

0.25 in

Warranty

Warranty information

30-day return policy via Walmart Marketplace. For any manufacturer warranty claims, please contact the manufacturer directly to verify coverage details and eligibility requirements.

Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.

Warnings

Customer ratings & reviews

4.7 out of 5 stars
stars
28 ratings24 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars79% (22)
  2. 4 stars18% (5)
  3. 3 stars0% (0)
  4. 2 stars0% (0)
  5. 1 star4% (1)
Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
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Showing 1-3 of 24 reviews

Aug 21, 2026
Reviewer name: RoxaneK
5 out of 5 stars
5 out of 5 stars review

Powerful little grinder

[This review was collected as part of a promotion.] The 20v MAX Atomic Right Angle Die Grinder works great. Trigger is easy to squeeze, easy numbers to read the speed selection, and the light is super bright. The bright light works great when you have to work into the evening or dark spaces, and Torque is powerful. If you're a DeWalt family like we are, you need this, even if you don't need it, lol!

Review from dewalt.com
Helpful?67C9L9K01CCG20057809661
Jul 12, 2026
Reviewer name: KatrinaK
5 out of 5 stars
5 out of 5 stars review

Work time

[This review was collected as part of a promotion.] This has come in handy for a few projects recently. It is easy to use and handle. I like that it feels comfortable to hold. While using it the vibrations aren't too bad. The noise is loud but not annoying. A great tool to have.

Review from dewalt.com
Helpful?67C9L9K01CCG20057809661
Jun 24, 2026
Reviewer name: MartinaS
5 out of 5 stars
5 out of 5 stars review

Powerful

[This review was collected as part of a promotion.] This tool is designed perfectly to fit any place and specially tight places. Very easy to use around and very powerful and gives you precise control. I really like it is cordless and gives you freedom to move around. Light in weight and easy to handle. Very sturdy and compact and can be stored with minimum space.

Review from dewalt.com
Helpful?67C9L9K01CCG20057809661
Current price is $199.00
Price when purchased online
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  • Free Holiday returns until Jan 31
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Sold and shipped by WB TOOLS
4.7444444444444445 out of 5 stars
4.7 stars out of 5, based on 180 seller reviews(4.7)
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