DEWALT 20V MAX* XR Angle Grinder with Brake, vs DEWALT DCG412B 20V MAX* Lithium Ion 4-1/2” Grinder
Updated July 2026 — DEWALT 20V MAX* XR Angle Grinder with Brake, wins on safety and weight, DEWALT DCG412B 20V MAX* Lithium Ion 4-1/2” Grinder wins on value and size.
The DEWALT 20V MAX* XR Angle Grinder offers superior performance and safety features, while the DCG412B is a more budget-friendly option. Choose based on your needs.
Why DEWALT 20V MAX* XR Angle Grinder with Brake, is better
Performance
Brushless motor enhances longevity and efficiency.
Safety
Integrated brake system reduces accident risk.
Features
POWER-LOSS RESET enhances safety during use.
Why DEWALT DCG412B 20V MAX* Lithium Ion 4-1/2” Grinder is better
Price
DCG412B is $94.52 cheaper.
Popularity
Higher sales rank indicates consumer preference.
Convenience
Quick-Change Wheel Release allows tool-free wheel removal.
Overall score
Specifications
| Spec | DEWALT 20V MAX* XR Angle Grinder with Brake, | DEWALT DCG412B 20V MAX* Lithium Ion 4-1/2” Grinder |
|---|---|---|
| Motor Type | Brushless | Brushed |
| Max RPM | N/A | 8000 |
| Brake System | Yes | No |
| Wheel Size | 5 inch | 4.5 inch |
| Trigger Type | Two-stage | 2-finger |
Dimension comparison
Price Comparison
The DEWALT DCG412B is significantly less expensive than the DEWALT 20V MAX* XR Angle Grinder with Brake, with a price difference of $94.52. The DCG412B is priced at $127.99, while the XR model is available for $222.51. This makes the DCG412B about 42% cheaper, making it a more budget-friendly choice for users looking for a reliable cordless angle grinder without the advanced features found in the XR model.
Performance and Power
When it comes to performance, the DEWALT 20V MAX* XR Angle Grinder with Brake features a brushless motor that enhances its longevity and efficiency, requiring no brush changes. The grinder achieves a rapid stop, with the wheel halting in 2 seconds or less on average, making it a safer option during operation. In contrast, the DEWALT DCG412B offers an 8,000 rpm motor, providing high power for various cutting and grinding applications. While both grinders are effective, the XR model's advanced braking system and brushless motor give it a notable edge in performance.
Features and Usability
The DEWALT 20V MAX* XR Angle Grinder is equipped with several advanced features, including a POWER-LOSS RESET and a two-stage trigger that requires two actions to activate the tool. These features enhance safety during use. On the other hand, the DEWALT DCG412B includes a Quick-Change Wheel Release for tool-free wheel removal, adding convenience to its operation. Additionally, the tool-free guard adjustments on the DCG412B allow for quick modifications, making it user-friendly. Both models have unique features that cater to different user preferences and needs.
Safety Features
Safety is a key consideration for both grinders, but the DEWALT 20V MAX* XR Angle Grinder stands out with its integrated brake system that stops the wheel quickly, reducing the risk of accidents. The Kickback Brake feature further protects users by engaging maximum force to stop the wheel in situations of bind-up or stall. The DCG412B does include a lock-off button on its trigger switch for safe activation, but it lacks the advanced braking system found in the XR model. Users prioritizing safety may lean towards the XR for its superior braking capabilities.
Size and Weight
While the specifics of size and weight are not detailed in the provided data, we can infer from their descriptions that the DEWALT DCG412B is designed for versatility with its 4-1/2-inch / 5-inch capability, likely making it lighter and more compact compared to the DEWALT 20V MAX* XR Angle Grinder, which is built for larger tasks with its 5-inch size. Users who require a more portable option may find the DCG412B appealing, as it is typically easier to handle for extended periods.
Sales Rank and Popularity
The DEWALT DCG412B enjoys a higher sales rank at 10,196, compared to the DEWALT 20V MAX* XR Angle Grinder, which has a sales rank of 77,304. This indicates that the DCG412B is a more popular choice among consumers, reflecting its appeal and reliability in the market. Higher sales ranks often suggest a product's tested performance and customer satisfaction, which could influence a buyer's decision.
Battery and Runtime
Both grinders are part of DEWALT's 20V MAX* line, meaning they are compatible with the same battery systems, allowing for flexibility in battery usage. However, the DEWALT DCG412B emphasizes extended runtime, which is beneficial for users who require longer working periods without interruptions. The XR model's brushless motor also contributes to efficient power usage, but the specific runtime details for both models are not provided. Users should consider their specific workload requirements when choosing between the two.
Which should you buy?
Choosing between the DEWALT 20V MAX* XR Angle Grinder with Brake and the DEWALT DCG412B ultimately depends on your specific needs and budget. If you prioritize advanced safety features, superior performance, and are willing to invest more, the XR model is an excellent choice. However, if you are looking for a cost-effective option with solid performance and user-friendly features, the DCG412B stands out as a compelling alternative. With a price difference of $94.52, it offers great value without sacrificing essential functionality.

