DEWALT FLEXVOLT 60V MAX 6-Inch vs DEWALT 20V MAX 4-1/2-Inch Grinder (2026): Key Differences

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You are comparing the dewalt flexvolt 60v max 6 inch vs 20v max 4 1 2 inch grinder for your next angle grinder purchase. Both tools deliver high-speed cutting and grinding performance from DEWALT. The main difference lies in their power systems and wheel capacities. The FLEXVOLT model runs on a 60V MAX platform and accepts larger 6-inch wheels. The 20V MAX model uses a 20V battery system and is limited to 4-1/2-inch wheels. This choice affects your workflow and tool compatibility.

Voltage

60V MAX

20V MAX

Maximum Speed

9,000 RPM

8,000 RPM

Wheel Diameter

Up to 6-inch

4-1/2-Inch

Configuration

Tool Only

Tool Kit (includes 2 batteries)

Braking System

Kickback Brake

Not listed

Wheel Change

Not listed

Quick-Change Wheel Release

Choose the first if

• You need to cut or grind with larger 6-inch wheels for heavier material removal.
• You already own 60V MAX FLEXVOLT batteries and want to expand your ecosystem.
• You require a higher no-load speed of 9,000 RPM for faster cutting.

Choose the second if

• You prefer a complete kit that includes two 5.0 Ah batteries and a charger.
• You want to change discs quickly without using a wrench via the Quick-Change release.
• You are working with standard 4-1/2-inch wheels and need a more compact setup.

Verdict

The FLEXVOLT model suits professionals who need the power of a 60V system and the versatility of 6-inch wheels. The 20V MAX kit is better for users who want a ready-to-use package with included batteries and convenient tool-free adjustments. Choose based on your existing battery platform and required wheel size.

Voltage, Speed, and Wheel Size

Voltage and Power

Edge: DEWALT FLEXVOLT 60V MAX 6-Inch Angle Grinder

The DEWALT FLEXVOLT 60V MAX 6-Inch Angle Grinder operates on a 60V MAX* platform, delivering a motor equivalent to 13 amps. This higher voltage system provides substantial torque for heavy-duty tasks. In contrast, the DEWALT 20V MAX 4-1/2-Inch Grinder Kit uses a 20V MAX* battery system. While the 20V model is efficient for standard jobs, the 60V system offers more raw power for demanding cutting and grinding applications. The voltage difference directly impacts the tool's ability to handle larger wheels and tougher materials without bogging down.

Maximum Speed

Edge: DEWALT FLEXVOLT 60V MAX 6-Inch Angle Grinder

Speed is critical for finish quality and cutting efficiency. The FLEXVOLT model achieves a maximum speed of 9,000 RPM. This higher rotational speed allows for faster material removal and smoother cuts on various surfaces. The 20V MAX grinder runs at 8,000 RPM. While still fast, the lower speed may require slightly more time to complete the same task compared to the FLEXVOLT unit. For users prioritizing speed and efficiency in high-volume work, the 9,000 RPM advantage is significant.

Wheel Diameter Capacity

Edge: DEWALT FLEXVOLT 60V MAX 6-Inch Angle Grinder

Wheel size determines the depth of cut and versatility. The FLEXVOLT grinder supports wheels up to 6 inches in diameter, in addition to standard 4-1/2-inch sizes. This allows you to tackle larger projects without switching tools. The 20V MAX grinder is limited to 4-1/2-inch wheels only. If your work frequently involves thicker materials or requires wider cuts, the larger wheel capacity of the FLEXVOLT model provides greater flexibility and reduces the need for multiple tools.

Included Tools and Kit Size

Edge: DEWALT 20V MAX 4-1/2-Inch Grinder Kit

Configuration matters for immediate usability. The 20V MAX model is sold as a Tool Kit, which includes two 5.0 amp hour batteries. This means you have backup power ready to go right out of the box. The FLEXVOLT grinder is sold as a Tool Only, meaning you must purchase batteries and a charger separately. If you already own 60V MAX batteries, this is less of an issue. However, for new users, the kit offers better immediate value and convenience.

Braking System

Edge: DEWALT FLEXVOLT 60V MAX 6-Inch Angle Grinder

Safety features protect you during unexpected bind-ups. The FLEXVOLT grinder features a Kickback Brake and an Anti-Rotation E-CLUTCH System that engages in less than a tenth of a second to shut down the motor. It also has a standard brake that engages within 1.5 seconds when the trigger is released. The 20V MAX grinder data does not specify an electronic kickback brake or E-CLUTCH system. The advanced electronic safety features of the FLEXVOLT model offer superior protection against sudden wheel stalls.

Which DEWALT grinder fits your needs?

Heavy-duty construction professionals needing maximum power

Our pick: DEWALT FLEXVOLT 60V MAX 6-Inch Angle Grinder

You need the 60V MAX* platform for heavy cutting and grinding. The 13-amp equivalent motor and 9,000 RPM speed handle large 6-inch wheels effectively. The Kickback Brake and Anti-Rotation E-CLUTCH System provide critical safety during bind-up events. This tool is built for demanding industrial tasks where speed and torque are essential for efficiency.

DIYers wanting a complete starter kit with batteries

Our pick: DEWALT 20V MAX 4-1/2-Inch Grinder Kit

You prefer a ready-to-use solution. This kit includes two 5.0 amp hour batteries, so you can start working immediately. The 20V MAX* system is lighter and easier to handle for smaller projects. The Quick-Change Wheel Release lets you swap discs without a wrench. It is a practical choice for occasional home repairs and light fabrication tasks.

Users prioritizing safety features and control

Our pick: DEWALT FLEXVOLT 60V MAX 6-Inch Angle Grinder

You value advanced safety mechanisms. The Kickback Brake engages in 1.5 seconds when the trigger is released, and the Anti-Rotation E-CLUTCH shuts down the motor instantly upon detecting a stall. These features reduce the risk of injury during pinch or bind-up events. The 6.61-pound weight offers stability, making it safer for prolonged use on tough materials.

Specifications side by side

Spec	DEWALT FLEXVOLT 60V MAX 6-Inch Angle Grinder	DEWALT 20V MAX 4-1/2-Inch Grinder Kit
Wheel Diameter	4.5 Inch, up to 6-inch	4-1/2-Inch
Voltage	60V MAX*	20V MAX*
Maximum Speed	9,000 RPM	8,000 rpm
Switch Type	–	2-finger trigger switch
Braking System	Kickback Brake	–
Configuration	Tool Only	Tool Kit
Chuck Size	–	1/2 Inch
Included Tools	Grinder	Grinder
Set Type	Tool Only	–
Dimensions	4.7 × 6.1 × 15.3 inches	21.1 × 7.63 × 12.4 inches
Weight	6.61 pounds	5.8 kilograms
Size	4.5 Inch	One Size
Color	Yellow,black	Metallic
Model	DCG414B	DCG412P2

Frequently asked questions

Which DEWALT grinder handles 6-inch wheels?

The DEWALT FLEXVOLT 60V MAX 6-Inch Angle Grinder supports 6-inch wheels. This model is designed for heavy-duty cutting tasks requiring larger abrasives. The 20V MAX 4-1/2-Inch Grinder only accepts 4-1/2-inch wheels. Choose the 60V MAX tool if your work demands the larger wheel capacity for aggressive material removal.

Is the 60V MAX grinder sold with a battery?

No, the DEWALT FLEXVOLT 60V MAX 6-Inch Angle Grinder is a bare tool. It does not include a battery or charger in the package. You must purchase compatible 60V MAX batteries separately. The 20V MAX model is available as a kit that includes batteries, offering a more complete out-of-the-box solution for new users.

How much does each grinder weigh?

The DEWALT FLEXVOLT 60V MAX 6-Inch Angle Grinder weighs 6.61 pounds. The DEWALT 20V MAX 4-1/2-Inch Grinder Kit weighs 5.8 kilograms. Converting the kilogram weight shows the 20V kit is heavier when including batteries and packaging. The bare 60V tool is lighter, which may reduce fatigue during extended overhead use.

What is the model number for the 60V MAX grinder?

The model number for the DEWALT FLEXVOLT 60V MAX 6-Inch Angle Grinder is DCG414B. This identifier helps you find replacement parts or compatible accessories. The 20V MAX 4-1/2-Inch Grinder Kit uses model number DCG412P2. Keeping these numbers handy ensures you order the correct components for your specific tool version.

Can I use the 60V battery in the 20V grinder?

The provided data does not confirm cross-compatibility between the 60V MAX and 20V MAX battery systems. DEWALT typically designs these platforms to be distinct. The 60V MAX tool requires 60V batteries, while the 20V MAX kit uses 20V batteries. You should verify compatibility with DEWALT support before attempting to mix battery platforms.

What is the best use case for the 60V MAX model?

The DEWALT FLEXVOLT 60V MAX 6-Inch Angle Grinder is best for heavy-duty cutting with 6-inch wheels. It suits professionals who need maximum power and already own the 60V battery system. The 20V MAX model is better for users valuing convenience and compact size. Select the 60V tool for demanding industrial applications.

Does the 20V MAX grinder come in a kit?

Yes, the DEWALT 20V MAX 4-1/2-Inch Grinder is available as a kit. This configuration includes the grinder along with necessary batteries. The 60V MAX 6-Inch Angle Grinder is sold as a tool-only bare unit. If you need a complete setup without buying batteries separately, the 20V MAX kit is the practical choice.

See also

• best DEWALT angle grinders under 200
• DEWALT vs makita angle grinder
• dewalt 20v max 6 1 2 inch circular review
• dewalt 20v max 4 1 2 inch brushless vs 13 amp 4 1 2 to 5 inch