The DEWALT DCG405FN is an 18 V XR brushless cordless angle grinder designed for a wide range of heavy‑duty applications including metal cutting, grinding, polishing and surface preparation. Its brushless motor delivers efficient power and longer runtime while reducing maintenance. The grinder’s compact flat‑head design gives excellent access to confined or tight work areas, making it ideal for professional tradespeople and serious DIYers alike.
🔧 Key Performance Features
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🔋 Brushless Motor: Efficient and durable motor design for improved runtime, power and tool life compared with brushed models.
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⚡ 18 V XR Battery System: Runs on DEWALT 18 V XR lithium‑ion batteries (sold separately), giving cordless freedom and compatibility with other DEWALT tools in the XR range.
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🔩 125 mm (5″) Disc Capacity: Standard disc size for robust cutting, grinding and polishing performance on metal, concrete and masonry.
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🔁 9,000 RPM No‑Load Speed: High‑speed operation ensures efficient material removal and quick job completion.
🛡️ Safety & Control Features
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🧯 Electronic Brake: Stops the disc quickly when the trigger is released to enhance safety.
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🔄 Electronic Clutch: Reduces kickback reaction if the disc binds, protecting the user and tool.
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🟡 Soft Start & Slide Switch: Smooth power‑up and reduced start‑up jerk, with a slide switch offering less fatigue during long tasks.
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🌀 Mesh Dust Covers: Help prevent abrasive dust from entering the motor for better durability.
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🤲 Rubber Overmould & Ergonomic Grip: Improves comfort and control during extended use.
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🔧 Two‑Position Side Handle: Adjustable handle for better leverage and stability.
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🛠️ Keyless Guard Adjustment: Quick‑release guard makes repositioning fast and tool‑free (varies by market packaging).
📐 Typical Specifications
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🔋 Power Source: 18 V DEWALT XR Lithium‑Ion battery (battery & charger not included)
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📏 Disc Size: 125 mm (5″)
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⚙️ No‑Load Speed: ~9,000 RPM
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🔌 Power Output: ~800 W
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⚖️ Weight: ~1.75 kg (body only)
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🪛 Spindle Thread: M14 standard fitting for discs and accessories
🔨 What You Can Use It For
✅ Cutting: Sheet metal, rebar, angle iron and other metals
✅ Grinding: Welds, rust removal, chamfering and surface prep
✅ Polishing & Finishing: With appropriate pads and discs
✅ Sanding or Surface Prep: Using sanding attachments
This makes the DEWALT DCG405FN a flexible multifunctional grinder for workshops, construction sites and fabrication tasks where cord‑free portability and performance are needed