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The DeWalt DCG412B is a bare-tool 4-1/2 inch angle grinder that runs on DeWalt's 20V Max batteries. It is built around cutting and light grinding: metal studs, rebar, threaded rod, pipe and sheet metal. The tool has no cord, so it goes where a corded grinder can't, and it shares batteries with the rest of the 20V Max line. Against corded 4-1/2 inch grinders it gives up sustained power and runtime, and it is sold without a battery or charger, so the value depends on batteries you already own.
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Owners treat it as a handy cordless cutter for metal work and quick jobs, and most praise the build and the battery platform. The common complaint is that it drains batteries fast and lacks the muscle of a corded grinder on long cuts.
Dewalt DCG412B 20V Max 4-1/2'' Cut Off Grinder
