The DEWALT DCG413B 20V MAX Brushless 4-1/2″ Angle Grinder (bare tool) is currently one of the top-selling (often #1) angle grinders on Amazon’s Best Sellers list and major US retailers like Home Depot.
Why It’s the Top Seller
- Ecosystem Dominance: Pairs perfectly with the hugely popular DEWALT 20V MAX battery platform. Millions of users already own compatible batteries, making this a low-barrier add-on.
- Balance of Power, Size & Portability: Ideal 4-1/2″ size for most grinding, cutting, polishing, and surface prep tasks without being overly heavy.
- Brushless Motor: Efficient, longer runtime, and more durable than brushed versions.
- Affordability & Availability: Bare tool pricing (~$100–$150) appeals to both pros and DIYers. High sales volume from contractors, fabricators, welders, and homeowners.
- Reliability: DEWALT’s tough reputation and widespread service network boost confidence.
Key Specs
- Wheel Size: 4-1/2 inch (most versatile size).
- No-Load Speed: ~9,000 RPM.
- Features: Paddle switch or slide switch variants, tool-free guard adjustment, E-clutch (anti-kickback), LED lights on some models, slim ergonomic grip.
- Weight: ~4–5 lbs (tool only) — very manageable for overhead or extended use.
- Power Source: Cordless 20V MAX (batteries sold separately).
Pros
- Excellent power-to-weight ratio for grinding metal, masonry, tile, rust removal, etc.
- Safety features reduce kickback risk.
- Fast brake and easy accessory changes.
- Durable build with good dust resistance.
- Strong user ratings (typically 4.6–4.8/5 from thousands of reviews).
Cons
- Battery life depends on amp-hour rating (use 4Ah+ for heavy work).
- Not the absolute most powerful in head-to-head tests (Milwaukee M18 Fuel or DEWALT 60V larger models win there).
- Bare tool requires existing batteries/charger.
How It Compares
- Milwaukee M18 Fuel (e.g., 2780-20 or 2880-20): Often preferred by pros for superior power and One-Key features, but usually more expensive.
- Makita 18V LXT (XAG04Z): Excellent ergonomics and runtime; strong alternative if you’re in the Makita ecosystem.
- Corded Options (e.g., DEWALT DWE402): Cheaper upfront with unlimited runtime, but less convenient on job sites.
Best For: DEWALT 20V users, general fabrication, metalwork, auto body, construction cleanup, and DIY projects. For heavy industrial use, consider stepping up to 7–9″ or higher-voltage models.
This grinder’s sales leadership reflects practical real-world demand rather than just lab performance. Always wear proper PPE (eye/ear protection, gloves, respirator) and use quality wheels/discs. Check current pricing and stock, as promotions are common.
