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The DeWalt DCG408B is a 20V Max brushless 4.5 in angle grinder with a paddle switch. It holds speed under load, spins up to 9,000 RPM, and adds a kickback brake and E-CLUTCH anti-rotation to cut the risk of a bind-up kick. It accepts 4 to 5 in wheels and swaps guards without a wrench. It is a tool-only purchase, so you need a 20V Max battery and charger. Against corded grinders it trades constant mains power for portability; against other cordless grinders its safety electronics and brushless motor are the draw. Owners like the control and the brake, and note it is heavy and thirsty on batteries.
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Owners rate the DCG408B as a strong cordless grinder with real safety electronics and steady speed under load. The common complaints are weight and battery drain during long cutting sessions.
The DeWalt DCG408B is a 20V Max brushless cordless angle grinder with a paddle switch. It is sold as a tool only, so the battery and charger are sold separately. The brushless motor maintains constant speed under load and the tool has overload protection.
It accepts 4 in to 5 in wheels, with 4.5 in the typical size. It comes with a Type B guard for grinding and a clip-on guard for cutting. The guard can be removed without tools. Mesh screens help keep debris out of the internal components.
Safety and control features include the paddle switch, a kickback brake and E-CLUTCH anti-rotation features. Run time is up to 56 cuts of 1/2" rebar with a DCB205 battery and DW8062 cutting wheel.
