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Description
DEWALT Cordless Angle Grinder DCG400B 20V MAX ATOMIC 4 Inch Brushless Tool (755 MWO 12500 RPM Paddle Switch Metal Cutting Weld Grinding Bare Tool)High Velocity Compact Metal Fabrication and Surface Conditioning The DEWALT DCG400B ATOMIC 20V MAX 4 Inch Angle Grinder is a compact battery powered metalworking tool engineered to deliver 755 MWO and a 12,500 RPM no load speed for heavy duty cutting and grinding. This cordless power tool features an advanced brushless motor that replaces 0. 7 HP pneumatic alternatives while reducing overall tool weight to 4. 34 pounds for enhanced maneuverability.
High Velocity Compact Metal Fabrication and Surface Conditioning
The DEWALT DCG400B ATOMIC 20V MAX 4-Inch Angle Grinder is a compact battery-powered metalworking tool engineered to deliver 755 MWO and a 12,500 RPM no-load speed for heavy-duty cutting and grinding. This cordless power tool features an advanced brushless motor that replaces 0.7 HP pneumatic alternatives while reducing overall tool weight to 4.34 pounds for enhanced maneuverability. The system incorporates an integrated electronic safety brake and an anti-rotation mechanism to protect operators from reactionary torque during wheel pinches or stalls in confined spaces.
**Battery and charger sold separately.
Best Used For:
- Structural Metal Cutting: Slicing through structural steel angles, rebar, threaded rods, and sheet metal panels with high-speed precision.
- Industrial Weld Grinding: Smoothing heavy weld beads, removing slag, and beveling pipe edges prior to structural joining.
- Surface Prep Conditioning: Stripping rust, scale, and paint from metal plates using standard wire cups or abrasive flap discs.
Key Performance & Safety Features
- Anti-Rotation Safety System: Sensors detect aggressive wheel binding or pinching to immediately cut power, minimizing tool twist.
- Rapid Electronic Brake: Automatic braking assembly forces the abrasive wheel to a complete stop in less than 1.15 seconds upon trigger release.
- Convertible Guarding System: Includes a Type B grinding guard alongside a tool-free Type A clip-on guard for rapid cutting transitions.
- Paddle Switch Architecture: Ergonomic paddle trigger integrates a safety lock-off mechanism without a lock-on option to prevent accidental startup.
- Forward Exhaust Porting: Vent paths route spent internal cooling airflow and structural debris entirely away from the operator's face.
What's Included
- (1) DCG400 ATOMIC 20V MAX 4-in. Angle Grinder (Bare Tool)
- (1) Wrench
- (1) Type B Guard
- (1) Type A Clip-on Guard
- (1) 1/16 in. Type 1 Wheel
- (1) 1/8 in. Type 1 Wheel
Technical Specifications
| Tool Power Type | Cordless / Battery Powered |
| Voltage | 20V MAX |
| Motor Type | Brushless |
| Wheel Diameter | 4 Inches |
| Max Speed (No Load) | 12,500 RPM |
| Max Power Output | 755 MWO |
| Switch Type | Paddle Switch with Lock-Off |
| Brake Engagement Time | < 1.15 Seconds |
| Guard Configurations | Type A (Cut) & Type B (Grind) |
| Assembled Weight | 4.34 lbs. |
| Assembled Length | 11.8 Inches |
Pro-Tip: Always match the guard to the application; use the Type A clip-on guard for abrasive wheel cutoff tasks to redirect flying sparks and fragments away from yourself, and swap to Type B for surface face grinding.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 5
Game-Changer for My Space!
Color: White, Size: 4 Panel Basic
I recently purchased the Kecreque 4-Panel Room Divider, and it has completely transformed my living area. At 88" wide, it provides ample coverage, creating a private nook in my open-concept home. The white polyester fabric is not only sleek and modern but also wrinkle-resistant and easy to clean—just a quick wipe with a damp cloth, and it looks brand new.
Assembly was a breeze; I had it set up in about 20 minutes. The metal frame feels sturdy and durable, and the three extra-wide metal feet offer excellent stability, ensuring it doesn't tip over easily. I love how the panels are connected with flexible buckles, allowing me to adjust the configuration to suit my needs—be it a straight line or an angled setup.
This divider has been perfect for creating a dressing area in my bedroom, and I've also used it to section off a workspace in my living room. Its versatility is unmatched, and it folds down compactly when not in use, making storage hassle-free.
If you're looking for a stylish, functional, and easy-to-use room divider, I highly recommend this one. It's been a fantastic addition to my home!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2025
★★★★★ 5
Sturdy and Functional
Color: White, Size: 4 Panel Basic
I got this to replace a poor quality divider that I tried first, and this thing is the best! It is easily folded, stands sturdily, easy to assemble, and the fabric looks great. Very very happy with the quality for the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2026
★★★★★ 1
Arrived damaged
Color: Black, Size: 4 Panel Basic
Unfortunately, very cheaply made. It arrived with one of the connecting tubes cracked horizontally. Possibly due to bad welding. It is quite a headache to assemble. It was delivered on time but returned for a refund.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
★★★★★ 3
Not a great experience but a fine product
Color: Black, Size: 4 Panel Basic
not enough screws were included to make the wall. I was able to locate more screws to finish building-so I didn’t have to return the product- but it was a pain and I got lucky finding the pieces I needed
but it could’ve been a fail and a returned product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 12, 2026
★★★★★ 5
Useful, simple room divider
Color: White, Size: 4 Panel Basic
All the pieces were accounted for, and some even had extra pieces, maybe just in case they need changing. It was a bit like putting together a piece of IKEA furniture, though I went slower than usual so as not to make any mistakes. It wasn’t too hard to put together myself, and helps give my studio apt a feeling of space and privacy for my bed. I only wish it had a lovely Japanese design on it, but it does amazingly seem to match the wall color.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 3, 2026
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