OUBA Cordless Angle Grinder Compatible for Dewalt 20V vs DEWALT Angle Grinder, 4-1/2-Inch, 11-Amp, 11,000 RPM
Updated July 2026 — OUBA Cordless Angle Grinder Compatible for Dewalt 20V wins on power and battery, DEWALT Angle Grinder, 4-1/2-Inch, 11-Amp, 11,000 RPM wins on speed and price.
The DEWALT Angle Grinder offers superior performance and durability, making it the better choice for heavy-duty tasks, while the Cordless Angle Grinder provides portability at a lower price.
Why OUBA Cordless Angle Grinder Compatible for Dewalt 20V is better
Price
Cordless Angle Grinder is cheaper by $29.01
Portability
Cordless design allows for easier transport and use in various locations
Variable Speed
Offers three speed settings for versatility in tasks
Why DEWALT Angle Grinder, 4-1/2-Inch, 11-Amp, 11,000 RPM is better
Motor Power
DEWALT has an 11 Amp motor with 11,000 RPM for faster material removal
Durability
Dust Ejection System enhances longevity and performance
Build Quality
Low-profile gear case allows access to tight spaces
Overall score
Specifications
| Spec | OUBA Cordless Angle Grinder Compatible for Dewalt 20V | DEWALT Angle Grinder, 4-1/2-Inch, 11-Amp, 11,000 RPM |
|---|---|---|
| Motor Type | Brushless | AC/DC |
| Max RPM | 9500 | 11000 |
| Dust Ejection | No | Yes |
| Variable Speed | Yes | No |
| Weight | 5.5 lbs | 6.2 lbs |
Dimension comparison
Overview of the Products
When it comes to angle grinders, the Cordless Angle Grinder Compatible for Dewalt 20V Max Battery is priced at $69.99, while the DEWALT Angle Grinder is available for $99.00. This presents a price difference of about 30%. Both products are designed for different user preferences—cordless convenience versus corded reliability. The Cordless Angle Grinder is ideal for those who prioritize portability, while the DEWALT model is suited for users who need consistent power and performance.
Design and Build Quality
The Cordless Angle Grinder features a durable wood cutting stand, enhancing stability during cutting tasks. In contrast, the DEWALT Angle Grinder boasts a low-profile gear case, allowing access to tight spaces. This design choice is crucial for users needing to navigate around obstacles in their work environment. While both grinders are built to withstand tough jobs, the DEWALT model has a more robust design, which is reflected in its higher price point.
Motor Performance
The Cordless Angle Grinder is equipped with a powerful brushless motor that can reach speeds of up to 9500 RPM. This makes it suitable for various tasks such as grinding, cutting, and polishing. On the other hand, the DEWALT Angle Grinder features an 11 Amp motor that achieves a maximum speed of 11,000 RPM. This higher RPM allows for faster material removal, making it a better choice for heavy-duty applications. Users looking for speed and efficiency may find the DEWALT model more appealing due to its superior motor capabilities.
Speed and Versatility
The Cordless Angle Grinder offers three variable speed settings, allowing users to adjust the speed for different tasks easily. This feature is complemented by an LED display that helps monitor the speed in real time. Meanwhile, the DEWALT Angle Grinder does not specify variable speeds but is designed for quick material removal with its high RPM. The added versatility of the Cordless Angle Grinder makes it more adaptable for various projects, catering to users who need different speeds for different applications.
User Comfort and Ergonomics
User comfort is a significant consideration, and both grinders have features that enhance ease of use. The Cordless Angle Grinder includes a rubberized anti-slip handle with two adjustable positions, providing a better grip and control during operation. The DEWALT Angle Grinder, however, features a 2-position side handle and a paddle switch with a safety lock-off to prevent accidental startups. While both models prioritize comfort, the added grip options in the Cordless Angle Grinder may be more appealing to users who value adaptability in their handling.
Maintenance and Durability
The DEWALT Angle Grinder is designed with a Dust Ejection System that helps expel damaging dust and debris, enhancing its durability over time. This system is crucial for maintaining the grinder's performance and prolonging its lifespan. The Cordless Angle Grinder, while lacking a specified dust ejection feature, is engineered for compatibility with Dewalt's 20V MAX batteries, which can be a cost-saving feature for users who already own Dewalt tools. For those who prioritize maintenance and long-term durability, the DEWALT model may be the better option.
Price Comparison
At $69.99, the Cordless Angle Grinder is approximately 30% cheaper than the DEWALT Angle Grinder, which costs $99.00. This price difference may significantly influence purchasing decisions, especially for budget-conscious consumers. However, it's essential to consider what features you are getting for that price difference. While the Cordless model is more affordable, the DEWALT model's performance capabilities might justify its higher cost for professionals or frequent users.
Which should you buy?
Choosing between the Cordless Angle Grinder and the DEWALT Angle Grinder ultimately depends on your specific needs. If you prioritize portability, versatility, and a lower price, the Cordless Angle Grinder is a solid choice. However, for those who require higher RPM for quick material removal and enhanced durability features like the Dust Ejection System, the DEWALT Angle Grinder is worth the investment. Each model has its strengths, catering to different user preferences and job requirements.

