🛠️ DEWALT 20V / 18V Cordless Mini Angle Grinder – Overview
A DEWALT cordless mini angle grinder is a battery-powered grinding/cutting/polishing power tool that’s compact and portable, designed for professionals and DIY users alike. It connects to DEWALT’s 20V MAX or 18V XR lithium-ion battery systems (batteries usually sold separately unless specified in a kit).
⚡ Power & Performance
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Battery Compatibility: Works with DEWALT 20V MAX or 18V XR Li-ion batteries — the same batteries used across many DEWALT cordless tools.
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Brushless Motor (on many models): More efficient and durable than brushed motors — delivering strong cutting/grinding performance and longer life.
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High Speed: Typical no-load speed around ~9,000 RPM for aggressive cutting and grinding tasks.
🧰 Key Features
Compact & Ergonomic Design
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Smaller body makes it easier to handle in tight spaces and control during precision work like polish or edge grinding.
Safety Enhancements
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Kickback Brake: Automatically stops the wheel if the disc binds up to reduce injury risk.
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E-CLUTCH / Electronic Clutch: Helps reduce kickback by shutting down the motor quickly under stall conditions.
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Electronic or Mechanical Brake: Stops disc rotation rapidly when trigger is released for safer handling.
Versatility
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Useful for cutting metal, grinding welds, removing rust, and polishing surfaces. Small discs (4″ or ~100mm) suit detailed work and lighter construction tasks.
🔩 Common Specifications (Typical DEWALT Mini Grinder)
| Feature | Typical Detail |
|---|---|
| Power Source | Cordless (Battery Powered) |
| Voltage | 20V MAX or 18V XR lithium-ion |
| Disc Diameter | ~4″ (100 mm) |
| No-Load Speed | ~9,000 RPM |
| Motor Type | Brushless (in many newer models) |
| Safety | Kickback brake, E-Clutch, quick brake |
(Exact specs depend on specific model and kit configuration.)
🔌 Benefits of a Cordless Grinder
✔ Portability: No cords to limit movement — ideal for workshops, job sites, and outdoor work.
✔ Battery Interchangeability: Shares batteries with other DEWALT 20V / 18V tools — practical if you already own DEWALT tools.
✔ Trim & Finish Work: Great for detail grinding, deburring, rust removal, and surface prep.