DeWalt just crossed a product barrier that has existed since the cordless tool era began: a battery-powered 4-inch cut-off tool. Announced via official press release on March 23, the ATOMIC 20V MAX DCG432XB is described by DeWalt as the industry’s first battery-operated 4-inch cut-off tool. It ships in April 2026 alongside a companion 3-inch model, the DCG430B.
The DCG432XB: 4-Inch Extended Cut-Off Tool
The 4-inch model is the headliner. It’s built to compete directly with 0.9 HP pneumatic cut-off tools — the kind electricians, HVAC techs, and pipe fitters use for cutting conduit, threaded rod, and structural hardware in tight spaces. Key specs from DeWalt’s press release:
- 28% lighter than comparable pneumatic units
- 44% smaller gearcase height versus pneumatic equivalents
- Matches 0.9 HP pneumatic performance
- PERFORM & PROTECT Anti-Rotation System: stops the wheel within 1.1 seconds on a pinch or stall event
- TOOL CONNECT chip-ready (optional Bluetooth tracking chip)
- Forward exhaust directs airflow away from the operator
The anti-rotation system isn’t just a spec — cut-off tools are among the higher-risk cordless tools because an abrasive wheel can fragment or the tool can torque unexpectedly. A 1.1-second stop is genuinely useful safety engineering.
The DCG430B: 3-Inch Cut-Off Tool
The 3-inch companion is more of a precision instrument. DeWalt claims it delivers 78% more power than a 0.5 HP pneumatic equivalent, and it includes a rotating guide with 11 positions for controlling cut angles. This suits weld prep, thin stock cutting, and close-tolerance metal work where a 4-inch wheel is overkill.
Why This Matters
Until now, cordless metalworking tools have been angle grinders or die grinders — both compromise when you specifically need a cut-off wheel configuration. A 4-inch cordless cut-off tool lets a tradesperson leave the air compressor on the truck for jobs that only require cutting, not grinding.
The 20V MAX ATOMIC platform is DeWalt’s compact professional tier, and these two tools fit the focus: lighter, more maneuverable alternatives to pneumatic tools for tradespeople already carrying 20V MAX batteries. No new battery investment required if you’re already in the ecosystem. How 20V MAX compares to other battery platforms is covered in detail here.
Both tools are expected to be available via Amazon and authorized dealers in April 2026. Pricing has not been officially confirmed. Sources: DeWalt Press Release, March 23, 2026 | ToolGuyd coverage
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