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DeWalt DCG405 Review: Fast, Safe Cordless Grinding

DeWalt’s 18V XR brushless grinder uses a 125 mm disc, electronic brake and clutch for better control.

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DeWalt DCG405 Review: Fast, Safe Cordless Grinding product image

Quick verdict

A strong professional cordless grinder with useful safety electronics and enough speed for everyday cutting and grinding.

Key specifications

  • 18V XR brushless motor

  • 125 mm disc

  • Up to 9,000 rpm

  • Electronic brake

  • Electronic clutch and mesh dust guards

What we like

  • Quick-stopping brake

  • Good power and ergonomics

  • Compatible with DeWalt 18V XR batteries

What to consider

  • Heavy use drains batteries quickly

  • Premium cost compared with corded grinders

Who should buy it?

Best for tradespeople needing cordless freedom with added kickback and braking protection.

Final verdict

ToolFactor verdict: 9/10 — an excellent cordless grinder for regular site use.

Specifications were checked against published manufacturer information. This is a research-based assessment and does not claim hands-on testing.