DEWALT FLEXVOLT ADVANTAGE 20V MAX* Angle Grinder, vs FULLYEA Cordless Angle Grinder 4-1/
Updated July 2026 — DEWALT FLEXVOLT ADVANTAGE 20V MAX* Angle Grinder, wins on power and safety, FULLYEA Cordless Angle Grinder 4-1/ wins on price and runtime.
The DEWALT FLEXVOLT ADVANTAGE offers superior power and advanced safety features, while the FULLYEA provides excellent value and versatility.
Why DEWALT FLEXVOLT ADVANTAGE 20V MAX* Angle Grinder, is better
Power
DEWALT delivers 1,550 max watts compared to FULLYEA's lower performance.
Safety Features
DEWALT includes advanced safety features like Kickback Brake and E-CLUTCH.
Brand Reputation
DEWALT has a higher sales rank, indicating stronger market recognition.
Why FULLYEA Cordless Angle Grinder 4-1/ is better
Price
FULLYEA is significantly cheaper at $46.99.
Speed
FULLYEA achieves a no-load speed of 12,000 RPM.
Included Accessories
FULLYEA comes with two batteries and a fast charger.
Overall score
Specifications
| Spec | DEWALT FLEXVOLT ADVANTAGE 20V MAX* Angle Grinder, | FULLYEA Cordless Angle Grinder 4-1/ |
|---|---|---|
| Max Watts | 1550 | N/A |
| RPM | 9000 | 12000 |
| Battery Included | No | Yes |
| Weight | N/A | N/A |
| Brand Rank | 14755 | 58729 |
Dimension comparison
Overview of Angle Grinders
When it comes to angle grinders, two notable contenders are the DEWALT FLEXVOLT ADVANTAGE 20V MAX* Angle Grinder and the FULLYEA Cordless Angle Grinder. The DEWALT model is priced at $144.50, while the FULLYEA grinder offers a budget-friendly option at $46.99, making it about 67% cheaper than its competitor. The price difference is significant, but does it reflect their capabilities and performance?
Power and Performance
The DEWALT FLEXVOLT ADVANTAGE boasts impressive power, delivering up to 1,550 max watts and reaching speeds of up to 9,000 rpm. In contrast, the FULLYEA Cordless Angle Grinder features a brushless motor that can achieve a no-load speed of 12,000 rpm. While the DEWALT model provides more power when paired with FLEXVOLT batteries, the higher speed of the FULLYEA model may appeal to users seeking quicker material removal. This performance comparison highlights that while the DEWALT excels in raw power, the FULLYEA offers a faster operational speed for various tasks.
Battery and Runtime
Battery performance is a crucial aspect of cordless tools. The DEWALT grinder operates with its FLEXVOLT and 20V MAX* batteries but does not include a battery in its package, making it necessary to purchase one separately. On the other hand, the FULLYEA grinder comes equipped with two 4.0Ah batteries and a fast charger, allowing for extended runtime and convenience during use. This means users of the FULLYEA can switch batteries for continuous work, making it a more practical choice for those who require mobility and less downtime.
Design and Ergonomics
In terms of design, the DEWALT FLEXVOLT ADVANTAGE features a paddle switch design that allows for easier operation, especially in more complex or tight working conditions. The FULLYEA grinder emphasizes ergonomics with a rotating safety guard and dual non-slip auxiliary handles, providing stability and comfort for both right- and left-handed users. The emphasis on user comfort and safety in the FULLYEA design may make it more appealing for extended use.
Safety Features
Safety is paramount in power tools, and both models offer unique safety features. The DEWALT grinder includes a Kickback Brake that engages with maximum force to stop the wheel quickly in the event of a bind-up. Additionally, it features an E-CLUTCH system that shuts down the motor when a pinch or stall is detected. In comparison, the FULLYEA grinder focuses on user protection through its rotating safety guard, which shields the user from flying debris during operation. While both tools prioritize safety, the DEWALT's advanced features may be more suited for heavy-duty tasks.
Versatility and Use Cases
The DEWALT FLEXVOLT ADVANTAGE is designed for heavy-duty applications, particularly in professional settings where power is crucial. It is part of DEWALT's PERFORM & PROTECT lineup, which suggests a focus on high performance in demanding environments. Conversely, the FULLYEA grinder, with its variable speed adjustment (0-6000/9000/12000 RPM), caters to a wider range of applications, including rust removal, metal cutting, and surface preparation. This versatility may make the FULLYEA a better option for DIY enthusiasts or those working on varied projects.
Brand Reputation and Sales Rank
Brand reputation plays an essential role in purchasing decisions. DEWALT is widely recognized for its durable and reliable tools, which is reflected in its sales rank of 14,755. The FULLYEA, while also a reputable brand, has a sales rank of 58,729, indicating it may not be as widely recognized in the market. This disparity in sales rank suggests that many professionals may favor DEWALT for its established reputation, especially in demanding work environments.
Which should you buy?
Ultimately, the choice between the DEWALT FLEXVOLT ADVANTAGE 20V MAX* Angle Grinder and the FULLYEA Cordless Angle Grinder depends on your specific needs. If you're looking for a powerful, professional-grade tool with advanced safety features and are willing to invest more, the DEWALT model is the clear choice. However, if you're seeking a budget-friendly, versatile option for various tasks, the FULLYEA grinder offers excellent value and convenience with its included batteries. Consider your budget, the types of projects you undertake, and how much you value brand reputation and safety features when making your decision.

