DEWALT 20V MAX* XR Angle Grinder with Brake, vs DEWALT Angle Grinder, 4.
Updated July 2026 — DEWALT 20V MAX* XR Angle Grinder with Brake, wins on power and length, DEWALT Angle Grinder, 4. wins on width and height.
The DEWALT 20V MAX* XR Angle Grinder offers advanced features and safety, making it a superior choice for demanding tasks. However, the DEWALT Angle Grinder, 4.5 Inch, provides excellent value for general use.
Why DEWALT 20V MAX* XR Angle Grinder with Brake, is better
Power
Brushless motor enhances longevity and efficiency
Safety
Advanced braking system minimizes accident risk
Features
Cordless design adds versatility for various tasks
Why DEWALT Angle Grinder, 4. is better
Price
Significantly lower cost for budget-conscious buyers
Popularity
Higher sales rank indicates broader appeal
Weight
Lighter design for easier handling
Overall score
Specifications
| Spec | DEWALT 20V MAX* XR Angle Grinder with Brake, | DEWALT Angle Grinder, 4. |
|---|---|---|
| Motor Type | Brushless | AC/DC |
| RPM | No Data | 11,000 |
| Brake System | Yes | No |
| Power Source | Cordless | Corded |
| Warranty | 3 Years | 3 Years |
Dimension comparison
Introduction to the DEWALT Angle Grinders
When it comes to angle grinders, DEWALT has established itself as a trusted brand in the industry. In this comparison, we will examine two popular models: the DEWALT 20V MAX* XR Angle Grinder with Brake and the DEWALT Angle Grinder, 4.5 Inch. Each model offers unique features that cater to different user needs, making it essential to identify which one is best suited for your tasks.
Price Comparison
The DEWALT 20V MAX* XR Angle Grinder with Brake is priced at $222.51, while the DEWALT Angle Grinder, 4.5 Inch, comes in significantly lower at $94.00. This makes the 4.5 Inch model approximately 58% cheaper than its counterpart. However, the higher price of the 20V MAX* model reflects its advanced features, which may justify the cost for users seeking enhanced performance and safety.
Power and Performance
In terms of power, the DEWALT 20V MAX* XR Angle Grinder features a brushless motor, which not only extends the motor's life but also requires no brush changes. This model is designed to stop the wheel in 2 seconds or less, offering enhanced safety during use. On the other hand, the DEWALT Angle Grinder, 4.5 Inch, is equipped with an 11 amp AC/DC motor that delivers a speed of 11,000 rpm. While both grinders provide excellent power, the brushless technology in the 20V MAX* model may give it an edge in terms of longevity and operational efficiency.
Safety Features
Safety is a key consideration for any power tool, and both models come with features to protect users. The DEWALT 20V MAX* XR Angle Grinder includes a power-loss reset function that prevents accidental restarts after a power outage. Additionally, its brake system halts the wheel quickly, minimizing the risk of accidents. In contrast, the DEWALT Angle Grinder, 4.5 Inch, is also equipped with a paddle switch that has a safety lock-off to prevent unintentional startup. While both grinders take safety seriously, the advanced braking system of the 20V MAX* model may appeal more to users prioritizing quick stops.
Design and Ergonomics
The design of a tool can significantly influence user experience. The DEWALT 20V MAX* XR Angle Grinder is compact and features a flathead paddle switch, allowing for easier maneuverability in tight spaces. The model is designed with user comfort in mind, ensuring that it can be used for extended periods without causing fatigue. In comparison, the DEWALT Angle Grinder, 4.5 Inch, boasts a uniquely small gripping surface and an ergonomically designed side handle, which also enhances comfort during use. Both models prioritize user ergonomics, but the choice may depend on personal preference for grip and handling.
Durability and Maintenance
When evaluating durability, the DEWALT 20V MAX* XR Angle Grinder offers a robust construction that is built to last, with features such as a no-volt release function to protect the tool. Its brushless motor eliminates the need for brush changes, which can be a maintenance hassle. The DEWALT Angle Grinder, 4.5 Inch, includes a dust ejection system that prevents harmful dust and debris from entering the tool, thereby extending its lifespan. Both grinders are built with durability in mind, but the brushless motor of the 20V MAX* model may provide a longer operational life with less maintenance required.
Versatility and Applications
The versatility of an angle grinder greatly influences its usefulness for various tasks. The DEWALT 20V MAX* XR Angle Grinder is ideal for users who need a cordless tool that can handle a wide range of cutting and grinding applications without being tethered to a power outlet. Its quick brake system provides added safety features for demanding jobs. Conversely, the DEWALT Angle Grinder, 4.5 Inch, is designed for both AC and DC power sources, making it suitable for a range of environments. This grinder excels in tasks that require high-speed performance, making it a solid choice for professional settings.
Sales Rank and Popularity
Sales rank can often indicate consumer preference and product reliability. The DEWALT 20V MAX* XR Angle Grinder holds a sales rank of 77,304, reflecting its niche appeal among specialized users. In contrast, the DEWALT Angle Grinder, 4.5 Inch, is ranked significantly higher at 3,735, suggesting that it is a favored choice for general consumers and professionals alike. This difference in popularity may be attributed to its lower price point and suitability for a broader range of applications.
Which should you buy?
Choosing between the DEWALT 20V MAX* XR Angle Grinder with Brake and the DEWALT Angle Grinder, 4.5 Inch depends largely on your specific needs and budget. If you require a powerful, cordless tool with advanced safety features and a longer lifespan, the 20V MAX* model may justify its higher price. However, if affordability and versatility are your main priorities, the 4.5 Inch model offers excellent performance at a much lower cost. Consider your typical tasks and how each grinder’s features align with those needs to make an informed decision.

