Key Features
More Control Under LoadThe anti-rotation system helps shut the tool down if the motion gets excessive. That matters when a wheel binds up and the grinder tries to twist in your hands. Brushless Grinding PowerA brushless motor delivers up to 1,590 MWO and 9,000 RPM no-load speed, giving this angle grinder the muscle for cutting, grinding, and cleanup work on metal. Ready for Fleet ManagementTool Connect chip-ready capability and wireless tool control support make this a better fit for larger crews that track tools and run dust extraction on the job.
Overview
The DEWALT DCG410B 20V MAX XR Brushless Cordless 4-1/2-In. – 5-In. Angle Grinder is a cordless metalworking and cutting tool built for pros who need strong output without dragging a cord around the jobsite. This is a cordless angle grinder designed for grinding, cutting, and surface prep. Model Number: DCG410B. Sold as a tool only, it gives you the grinder body and core hardware, while the battery and charger are purchased separately.
Where this grinder earns its keep is the mix of speed, safety, and day-to-day usability. The brushless motor is rated for up to 1,590 MWO and spins at up to 9,000 RPM no load, which is right in the zone for common grinding and cutoff work. That means enough wheel speed for cleaning welds, cutting threaded rod, knocking down burrs, or trimming rebar without the tool feeling underpowered for the class.
DEWALT built this model as part of its more powerful 20V MAX angle grinder lineup, and the feature set reflects that. The anti-rotation system is there for a reason: when a wheel catches and the tool wants to rotate hard, the grinder can shut down if that motion becomes excessive. On a grinder, that is not a throwaway spec. It is the kind of feature that can help you stay in control when the work gets awkward or the material pinches.
The paddle switch layout also makes sense for real use. A paddle switch gives a lot of users better natural control than a slide switch, especially when moving through repeated cuts or repositioning on steel stock. The side handle, Type 27 guard, wrench, and inner and outer flange are included, so you have the core setup pieces needed to get the tool ready for the right accessory.
From a jobsite practicality standpoint, this grinder is clearly aimed at contractors already running DEWALT cordless tools. It uses the 20V MAX battery platform, so it fits into an established battery rotation instead of adding another charger to the truck. It is also Tool Connect chip-ready with the chip sold separately, which matters more than some guys think if you manage multiple crews or keep losing track of bare tools across jobs.
Another useful detail is wireless tool control capability when paired with a compatible DEWALT dust extractor sold separately. If your work includes grinding where dust collection matters, that setup can simplify tool-triggered extractor control and make cleanup a lot less annoying. It will not matter to every buyer, but for renovation, indoor work, and crews trying to keep dust down, it is a real advantage.
Physically, this is still a compact cordless grinder, not a large two-hand high-capacity unit. It is built around 4-1/2 inch to 5 inch wheels with a 5/8 inch arbor, which keeps it squarely in the sweet spot for common fabrication, maintenance, and install work. That size is popular because it is versatile enough for cutoff jobs and grinding tasks while staying easier to control than a larger grinder.
If you are a metal fabricator, mechanical contractor, electrician, plumber, maintenance tech, or serious DIYer already on DEWALT 20V MAX, this is the kind of grinder that makes sense. It gives you pro-level cordless convenience, strong brushless performance, better control features than a basic grinder, and the ability to share batteries with the rest of your kit. If you need a bare tool grinder that is ready for cutting metal, grinding welds, and general fabrication work, this one is aimed right at you.
Built for Real Metal Cutting
This is the kind of cordless angle grinder you grab when you need to move fast on steel without hunting for an outlet. The 4-1/2 inch to 5 inch wheel range covers a lot of common cutoff and grinding tasks.
- Up to 9,000 RPM no-load speed for grinding and cutoff work
- Brushless motor rated up to 1,590 MWO
Safety Feature That Actually Matters
Grinders can get ugly in a hurry when a wheel binds. DEWALT’s anti-rotation system is there to help reduce that problem by shutting the tool down if the rotational motion gets excessive.
- PERFORM & PROTECT feature set includes anti-rotation system
- Included 5 inch Type 27 guard supports common grinding setups
Strong Output in a Cordless Format
For a tool in this class, the numbers are solid and the platform fit is the bigger story. If you already run DEWALT 20V MAX packs, this grinder drops right into your rotation and keeps mobile cutting and grinding simple.
- 20V MAX battery platform
- Tool-only format lets existing DEWALT users skip extra battery cost
What’s in the Box
- (1) DEWALT DCG410 20V MAX XR Brushless Cordless 4-1/2-In. – 5-In. Angle Grinder
- (1) 5-In. Type 27 Guard
- (1) Side Handle
- (1) Wrench
- (1) Inner and Outer Flange
Battery and charger sold separately.
At a Glance
9,000RPM No-Load Speed 1,590MWO 4-1/2 In. – 5 In.Wheel Capacity 20V MAXBattery Platform
Key Specifications
| Voltage | 20 V |
|---|---|
| Power Source | Battery |
| Motor Type | Brushless |
| No-Load Speed | 9,000 RPM |
| Wheel Diameter | 4-1/2 In. – 5 In. |
| Arbor Size | 5/8 In. |
| Weight | 3.92 lbs |
| Length | 12.2 In. |
Compatibility
Battery PlatformWorks with DEWALT 20V MAX batteries. Battery and charger are sold separately. Tool ConnectTool Connect chip-ready for use with the optional chip and the Tool Connect Site Manager app. Dust ExtractionWireless tool control can be used with a compatible DEWALT dust extractor sold separately. Accessory SizeDesigned around 4-1/2 inch to 5 inch wheel sizes with a 5/8 inch arbor.
Built For
Metalworking Construction General Contracting Mechanical Trades Plumbing Electrical Cutting Rebar Grinding Welds
Pro Tip
If you are switching between cutoff and grinding work during the day, keep the included wrench and flange set in the same bag as the tool. On cordless grinders, the lost wrench is usually what slows you down, not the battery change.
Warranty & Support
3 Year Limited Warranty.
Tool Nut’s Take
Tool Nut’s Take
DEWALT DCG410B 20V MAX XR Brushless Cordless 4-1/2-In. – 5-In. Angle Grinder Gets the Important Stuff Right
This is a smart buy for guys who want a serious cordless grinder with real safety features and no wasted fluff.
- Who it’s for: DEWALT 20V MAX users doing metal cutting, weld cleanup, rebar trimming, and general fabrication or install work.
- Why it stands out: Strong brushless output, paddle switch control, anti-rotation shutdown, and jobsite-friendly compatibility with Tool Connect and DEWALT dust extraction.
- Worth knowing: It is a bare tool, so plan on supplying your own battery, charger, and wheel. If you already own DEWALT batteries, that is exactly how this grinder makes the most sense.
Common Questions
- Is this a cordless or corded grinder? It is a cordless angle grinder powered by a DEWALT 20V MAX battery.
- Does it include a battery and charger? No. This DCG410B version is sold as a tool only.
- What wheel size does it use? It is designed for 4-1/2 inch to 5 inch wheels and uses a 5/8 inch arbor.
- Does it have a safety shutoff feature? Yes. It includes an anti-rotation system that can shut the tool down if rotational motion becomes excessive.
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