DEWALT 20V MAX* Angle Grinder Tool Cordless Brushless, 4 1/2 Inch, with Paddle Switch and Kickback Brake, Tool Only (DCG413B)
Best for
Best DeWalt cordless
Amazon rating
Amazon aggregate, one input among many in the Verdict Score
Current price
$155.00
Updated May 18, 2026 · 1 min read
Sources behind this verdict
10 reviewers weighted by source trust
The consensus
What reviewers found
Synthesized across the trust-weighted source mix below.
Across the reviewers we read, the DeWalt DCG413B is the cordless DeWalt grinder with the deepest verified-purchase track record, 4.8 across roughly 9,500 amazon.com ratings, which is one of the largest review bases in the category. r/Dewalt threads repeatedly point new buyers toward this tool or its DCG416 FlexVolt sibling, citing the paddle switch, kickback brake, and brushless motor as the right baseline feature set. The trust-weighted picture is not uniformly positive.
What reviewers liked
- Kickback brake and brushless motor consistently praised in r/Dewalt threads
- Paddle switch with no-lock design, the safer configuration per community consensus
- Massive verified-purchase base (~9,500 reviews at 4.8 on amazon.com)
- Compatible with the broader 20V MAX battery ecosystem
Where it falls short
- r/Dewalt user reported a DCG418 (sibling tool) failure at 10 months
- Subreddit consensus says 60V FlexVolt is preferable for all-day grinding
- Kickback brake can occasionally trip during aggressive cutting per community reports
- Tool-only, requires existing 20V MAX battery investment
Across the reviewers we read, the DeWalt DCG413B is the cordless DeWalt grinder with the deepest verified-purchase track record, 4.8 across roughly 9,500 amazon.com ratings, which is one of the largest review bases in the category. r/Dewalt threads repeatedly point new buyers toward this tool or its DCG416 FlexVolt sibling, citing the paddle switch, kickback brake, and brushless motor as the right baseline feature set.
The trust-weighted picture is not uniformly positive. One r/Dewalt commenter reported a DCG418 failure at 10 months, and the same subreddit notes that for all-day grinding the 60V FlexVolt platform is a better fit than the 20V MAX line. Reviewers also flag that the kickback brake, while welcome, occasionally trips on aggressive cuts.
For buyers on the DeWalt 20V MAX platform who want a paddle-switch 4.5-inch tool with modern safety features, the cross-source consensus is clear and consistent.
- 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.
The 20v brushed one has lasted me 8 years of hard abuse, still runs great. I put a 6" guard on it right away too and use 6" blades. 3-1/3" too ...
I'd say just get a corded one unless you really 100% need the cordless. My DCG418 just died at 10 months (turns on sometimes and shudders and ...
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“DEWALT 20V Max XR Cordless Brushless 4” · 1/2” Angle Grinder ...
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