DEWALT DCG414B vs. DCG418B Breaking Down the Differences

Published May 20, 2025

DEWALT’s FLEXVOLT 60V MAX cordless angle grinders are built for serious cutting and grinding tasks. If you’re deciding between the DCG414B vs. DCG418B, it comes down to power, wheel compatibility, and jobsite demands. Both tools provide professional-level performance and feature-rich designs but are tailored for slightly different users. This guide breaks down the key differences, use cases, and performance expectations so you can choose the grinder that matches your workload.

Tool Overview

Both models belong to DEWALT’s FLEXVOLT family and run on the 60V MAX platform. They feature brushless motors for maximum efficiency and long motor life. These grinders also come with DEWALT’s signature Kickback Brake and E-Clutch systems, making them among the safest cordless grinders on the market. While both tools deliver performance equivalent to at least 13 amps of corded power, the DCG418B edges ahead in brute strength and cutting depth.

Comparison Table

Feature	DCG414B	DCG418B
Wheel Size	4.5 in.	4.5 in. to 6 in.
Power Output	13 amps (corded equivalent)	13 amps+ (more powerful than DCG414B)
Motor Type	Brushless	Brushless
Kickback Brake	Yes	Yes
Electronic Clutch	Yes	Yes
Battery Platform	FLEXVOLT 60V MAX	FLEXVOLT 60V MAX
Tool Weight	~4.7 lbs (tool only)	~5.2 lbs (tool only)
Cutting Capacity	Limited to 4.5 in. discs	Supports up to 6 in. discs for deeper cuts
Use Case	Compact grinding, cutting	Versatile cutting/grinding with larger discs

DCG414B FLEXVOLT 60V MAX 4.5 in. Angle Grinder

The DCG414B is DEWALT’s original 60V cordless grinder, designed to give users the performance of a corded 13-amp grinder without needing an extension cord. It’s compatible with 4.5 in. wheels and delivers high RPMs for fast cuts and efficient material removal. With a weight of under 5 lbs., it is easier to handle for overhead tasks, one-handed use, and tight corners.

The smaller wheel size of DCG414B, combined with a compact gear housing, makes it ideal for cutting rebar, scoring concrete, removing weld slag, and cleaning up metal edges. Tradespeople who work in tight spaces—such as electricians, HVAC techs, and auto body pros—will find this tool nimble and responsive.

Despite its smaller size, this tool doesn’t compromise on safety. It includes DEWALT’s Kickback Brake, which stops the wheel fast in case of a bind-up, and an electronic clutch that senses pinch events and reduces motor torque. This gives users the confidence to use it in demanding and awkward positions without fear of losing control.

Alternate Names:

• DEWALT DCG414B 4.5″ FLEXVOLT Grinder
• 60V MAX Compact Cordless Grinder
• DEWALT Compact Brushless Angle Grinder

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DCG418B FLEXVOLT 60V MAX 4.5–6 in. Small Angle Grinder

The DCG418B is the upgraded version for users who want the same safety and build quality of the DCG414B but with more power and more wheel options. Supporting up to 6-inch discs, the DCG418B gives users access to greater cutting depth and wider coverage on each pass, which is a huge benefit when working on structural steel, large concrete panels, or extended surface prep.

In addition to the Kickback Brake and electronic clutch, it includes advanced overload protection, better heat dissipation, and a refined housing to handle tougher abuse. It generates higher sustained torque under load, which means it won’t bog down as easily when cutting thick steel, scoring expansion joints in concrete, or grinding down masonry seams.

The slightly increased weight (around 5.2 lbs.) is offset by the added performance, and users who already work with 6-inch wheels will find the extra reach invaluable. Whether you’re a steel fabricator, demo crew member, or general contractor, this tool is ready to replace a corded grinder on even your most demanding tasks.

Alternate Names:

• DEWALT DCG418B 6″ FLEXVOLT Grinder
• 60V MAX High-Capacity Angle Grinder
• DEWALT Large Wheel Cordless Grinder

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Key Differences

• Wheel Size Compatibility: The DCG414B is limited to 4.5-inch discs. The DCG418B supports up to 6-inch wheels, offering greater cut depth and coverage.
• Cutting Power: DCG418B produces more torque and maintains higher RPMs under pressure. It performs better during heavy cutting or long grinding sessions.
• Tool Weight and Size: DCG414B is better for compact areas and lighter workloads. DCG418B is heavier but built for bigger, longer jobs.
• Application Flexibility: DCG414B is ideal for precise cuts and controlled grinding. DCG418B handles aggressive demolition and high-volume material removal.

Conclusion & Recommendation

Choosing between the DCG414B and DCG418B depends on how you plan to use your grinder. While they look similar on paper and share the same FLEXVOLT 60V platform, each model excels in different situations.

If you value maneuverability, reduced fatigue, and precision, the DCG414B is the right tool. It fits the needs of users working in tight quarters or who prioritize control—perfect for mechanical contractors, electricians, welders, and mobile service techs. Its compact form makes it easier to get into confined spaces, and it’s less tiring to use over extended periods.

On the other hand, if your work demands maximum performance and flexibility, the DCG418B is a clear upgrade. It brings the kind of power and disc compatibility that make corded grinders feel outdated. The ability to run 6-inch wheels means you’ll cut deeper, grind faster, and spend less time swapping discs. For framers, masons, heavy metal workers, or crews doing high-volume demolition or prep, the DCG418B pays off in productivity.

Both grinders are excellent additions to a cordless setup. They share the same battery platform, safety features, and build quality that make DEWALT’s FLEXVOLT line so respected. If you’re building out your cordless metalworking or demo kit, either model is a strong investment.

To summarize:

• Choose DCG414B for lighter jobs, compact spaces, and all-day usability.
• Choose DCG418B for max cutting depth, speed, and industrial performance.

Posts on Slice Hardware are for information purposes only and not advice for projects, tool use, or safety.