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DCG430B

ATOMIC 20V MAX* 3 in. Cut-Off Tool (Tool Only)

A DEWALT 20V cordless brushless cut-off tool, model DCG430B, shown in yellow and black. The tool has a protective guard over the cutting disc and is battery powered.

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Product details

Make straight, clean cuts in tight or narrow spaces with the ATOMIC™ 20V MAX* 3 in. Cut-off tool (battery and charger sold separately). Engineered for tough metalworking applications, this tool is equipped with the DEWALT® perform and protect anti-rotation system to help maximize control. For convenience, the ATOMIC™ 20V MAX* 3 in. Cut-off tool is designed with a rotating guard that offers 11 positions to help optimize cuts in a wide range of angles. Ditch the hoses and compressors with this cordless solution that delivers 78% more power than 0.5 HP rated pneumatic 3 in. Cut-off tools¹.

  • Help Maximize Control - Equipped with the DEWALT® PERFORM & PROTECT™ ANTI-ROTATION™ system
  • Brake Stops Wheel in Less Than 1 Second² - Help maintain control after the ON/OFF trigger is released
  • Pneumatic-like Power - 78% more power than 0.5 HP rated pneumatic 3-in Cut-off tools¹
  • Fast Wheel Changes - Spindle lock removes the need for multiple wrenches
  • Ergonomic Design - Similar weight in use to competitive pneumatic 3-in Cut-off tool³
  • Rotating Guard - 11 positions for a wide range of applications
  • Tool-free Adjustments - Work comfortably in tight or awkward spaces with rotation adjustments up to +/- 75 degrees
  • Paddle Switch - Lock-off paddle and no lock-on
  • Forward Exhaust System - Help direct air away from the user
  • TOOL CONNECT Chip-Ready™ - Pair with the TOOL CONNECT™ Chip (sold separately) and TOOL CONNECT™ software⁴

Product Type
Cut-Off Tool
Voltage
20V
Cordless or Corded
Cordless
Power Source
Cordless
Tool Only
Yes

  • (1) DCG430 ATOMIC COMPACT SERIES™ 20V MAX* 3 in. Cut-Off Tool
  • (1) Diamond Multi-Material Wheel**
  • (1) Bonded Abrasive Cutting Wheel
  • (1) Inner and Outer Flange Accessory
  • (1) Bolt Wrench

  • 3 Year Limited Warranty, 1 Year Free Service, 90 Days Satisfaction Guaranteed

We take extensive measures to ensure all our products are made to the very highest standards and meet all relevant industry regulations.

Customer Support

* *Maximum initial battery voltage (measured without a workload) is 20 volts. Nominal voltage is 18.

* ¹ - Based on MWO using DCBP034G battery (sold separately).

* ² - on average, using 3-in T1 DW8711 wheel.

* ³ - Measured with DCBP034G battery (sold separately) vs. Chicago Pneumatic CP874 with 36-in of connected 1/2-in diameter hose and equal accessories. Chicago Pneumatic® is a trademark of Chicago Pneumatic Tool Company, LLC, which has not endorsed, approved, or sponsored this comparison.

* ⁴ - Additional subscription charge and third party data charges may apply.

* ** - This wheel uses manufactured diamonds engineered for cutting.

Downloads and manuals

Instruction Manual, Type 1
NA599911_DCG430_T1_NA.260810.pdf
PDF
Exploded Diagram, Type 1
NB407335_DCG430_T1.259334.svg
SVG
Exploded Diagram, Type 1
NB407335_DCG430_T1_20260304.300051.svg
SVG

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Pneumatic-Like Power

Cut 1/2 in rolled steel with 78% more power than 0.5 HP rated pneumatic 3 in. cut-off tools¹.

A person wearing safety gear uses a DEWALT cordless grinder to work on a metal structure, producing sparks in an industrial setting.

Ergonomic design

Maneuver in tight spaces with a slim, ergonomic design that's a similar weight in use to competitive pneumatic 3 in. cut-off tool³.

A person wearing safety gear uses a DEWALT cordless grinder to work on a metal structure, producing sparks in an industrial setting.
Yellow graphic states battery and charger not included with product.

Bare tool notice

This item does not include a battery or charger. Compatible batteries and accessories can be found within the ATOMIC™ 20V MAX* system.

¹ Based on MWO using DCBP034G battery (sold separately).

³ Measured with DCBP034G battery (sold separately) vs. Chicago Pneumatic CP874 with 36" of connected 1/2" diameter hose and equal accessories. Chicago Pneumatic® is a trademark of Chicago Pneumatic Tool Company, LLC, which has not endorsed, approved, or sponsored this comparison.

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