DEWALT DCG412B 20V MAX* Lithium Ion 4-1/2” Grinder vs DEWALT FLEXVOLT ADVANTAGE 20V MAX* Angle Grinder,
Updated July 2026 — DEWALT DCG412B 20V MAX* Lithium Ion 4-1/2” Grinder wins on price and weight, DEWALT FLEXVOLT ADVANTAGE 20V MAX* Angle Grinder, wins on safety and power.
The DEWALT FLEXVOLT ADVANTAGE DCG416B offers superior power and safety features, making it the better choice for demanding tasks. However, the DCG412B is more budget-friendly for routine use.
Why DEWALT DCG412B 20V MAX* Lithium Ion 4-1/2” Grinder is better
Price
DCG412B is $127.99, cheaper than DCG416B at $144.50.
Weight
DCG412B is lighter, making it easier to handle.
Simplicity
DCG412B has straightforward features for basic tasks.
Why DEWALT FLEXVOLT ADVANTAGE 20V MAX* Angle Grinder, is better
Power
DCG416B delivers up to 54% more power with FLEXVOLT batteries.
Safety
DCG416B includes Kickback Brake and E-CLUTCH for enhanced safety.
Speed
DCG416B has a maximum speed of 9,000 rpm compared to 8,000 rpm of DCG412B.
Overall score
Specifications
| Spec | DEWALT DCG412B 20V MAX* Lithium Ion 4-1/2” Grinder | DEWALT FLEXVOLT ADVANTAGE 20V MAX* Angle Grinder, |
|---|---|---|
| Max RPM | 8,000 | 9,000 |
| Power Output | 1,200 watts | 1,550 watts |
| Battery Compatibility | 20V MAX | 20V MAX & FLEXVOLT |
| Weight | 5.1 lbs | 5.6 lbs |
| Safety Features | Basic | Kickback Brake, E-CLUTCH |
Dimension comparison
Overview of the DEWALT DCG412B and DEWALT FLEXVOLT ADVANTAGE DCG416B
The DEWALT DCG412B is priced at $127.99, while the DEWALT FLEXVOLT ADVANTAGE DCG416B costs $144.50, making the former about 17% cheaper. Both are powerful angle grinders that cater to various cutting and grinding applications, but they offer different features that may appeal to distinct user needs.
The DCG412B provides a robust motor that delivers 8,000 rpm for high performance in demanding tasks. Its design focuses on convenience with features like a Quick-Change Wheel Release and tool-free guard adjustments. On the other hand, the DCG416B utilizes FLEXVOLT technology, enhancing its power output significantly when paired with compatible batteries, making it potentially advantageous for heavy-duty projects.
Power and Performance Comparison
When it comes to power, the DEWALT FLEXVOLT ADVANTAGE DCG416B shines with its ability to deliver up to 54% more power when used with FLEXVOLT batteries. This enhanced performance translates to a maximum output of 1,550 watts and a top speed of 9,000 rpm, making it ideal for more demanding tasks.
In contrast, the DEWALT DCG412B, while still powerful, offers a maximum speed of 8,000 rpm. This difference in maximum speed and power output means that the DCG416B may be better suited for users who frequently engage in heavy grinding or cutting. As such, the DCG412B is a solid choice for routine tasks but may fall short for more intensive applications.
User Convenience and Safety Features
User convenience and safety are paramount in tool design, and both grinders excel in these aspects, albeit differently. The DCG412B features a 2-finger trigger switch with a lock-off button, allowing for convenient activation and improved grip while working. This model also includes a Quick-Change Wheel Release for tool-free wheel changes.
Conversely, the DCG416B adds a layer of safety with its Kickback Brake, which engages to stop the wheel swiftly in case of a bind-up, ensuring user safety during operation. Additionally, the E-CLUTCH system provides automatic motor shutdown in under a tenth of a second upon detecting a stall. These features make the DCG416B not only user-friendly but also significantly safer, particularly for professionals who operate under tight deadlines.
Battery Compatibility and Runtime
Battery compatibility is crucial for cordless tools, and both DEWALT models offer flexibility in this regard. The DCG412B is compatible with all DEWALT 20V MAX batteries, making it a versatile choice for users who already own DEWALT tools.
In contrast, the DCG416B is designed to be compatible with both 20V MAX and FLEXVOLT batteries, which allows for enhanced performance and runtime when using the latter. The potential for increased battery life and power output makes the DCG416B a strong contender for users who prioritize efficiency and extended work sessions.
Design and Ergonomics
Both the DEWALT DCG412B and the DCG416B are designed with ergonomics in mind, but their designs cater to slightly different user preferences. The DCG412B includes a 2-position side handle, which enhances comfort and control during use. This feature is particularly beneficial for users who may need to operate the grinder in various positions.
Meanwhile, the DCG416B’s design also incorporates a paddle switch, which can be more intuitive for some users, allowing for easier activation and control. The overall weight and balance of both tools contribute to user comfort, making either choice viable for extended use without significant fatigue.
Price and Value
The DEWALT DCG412B is priced at $127.99, making it a more budget-friendly option compared to the DEWALT FLEXVOLT ADVANTAGE DCG416B, which retails for $144.50. This $16.51 difference might influence buyers who are looking for a solid angle grinder without breaking the bank.
However, the additional features and power capabilities of the DCG416B may justify the higher price for users who require more from their tools. The value of each grinder, therefore, depends on the specific needs of the user—whether they prioritize cost-effectiveness or advanced features and performance.
Sales Rank and Popularity
The DEWALT DCG412B has a sales rank of 10,196, indicating its popularity among consumers. While the DEWALT FLEXVOLT ADVANTAGE DCG416B has a slightly lower sales rank of 14,755, it is important to note that both products are well-regarded in the angle grinder category.
Consumer preferences often reflect the demand for features and performance, with the DCG412B appealing to everyday users and the DCG416B targeting professionals or those needing high-performance tools. Ultimately, both grinders have their merits and cater to different market segments.
Which should you buy?
Deciding between the DEWALT DCG412B and the DEWALT FLEXVOLT ADVANTAGE DCG416B depends on your specific needs and budget. If you are looking for a reliable, cost-effective grinder that excels in routine tasks, the DCG412B is a sound choice at $127.99. However, if your work demands higher power and advanced safety features, the DCG416B is worth the investment at $144.50, especially when paired with FLEXVOLT batteries for maximum performance. Ultimately, both grinders are excellent tools, but your choice should align with your intended use and budget considerations.

