OUBA Cordless Angle Grinder Compatible for Dewalt 20V vs Milwaukee 2888-20 18V Cordless 4.5"/5" Grinder
Updated July 2026 — OUBA Cordless Angle Grinder Compatible for Dewalt 20V wins on sales rank and rpm, Milwaukee 2888-20 18V Cordless 4.5"/5" Grinder wins on price and speed settings.
The OUBA grinder offers better value and compatibility for Dewalt users, while the Milwaukee model excels in safety features and brand reputation.
Why OUBA Cordless Angle Grinder Compatible for Dewalt 20V is better
Price
OUBA is significantly cheaper at $69.99.
Battery Compatibility
Compatible with existing Dewalt batteries.
Weight
Lighter and more portable for on-site jobs.
Why Milwaukee 2888-20 18V Cordless 4.5"/5" Grinder is better
Safety Features
Includes a brake that stops the wheel in 2 seconds.
Performance
Higher sales rank indicates better market trust.
Variable Speed
Offers five speed settings for better control.
Overall score
Specifications
| Spec | OUBA Cordless Angle Grinder Compatible for Dewalt 20V | Milwaukee 2888-20 18V Cordless 4.5"/5" Grinder |
|---|---|---|
| Motor Type | Brushless | Brushed |
| Handle Type | 2-Position | Paddle Switch |
| Stand Included | Yes | No |
| Brake Feature | No | Yes |
| Variable Speed | 3 Settings | 5 Settings |
Dimension comparison
Price Comparison
When it comes to price, the Cordless Angle Grinder Compatible for Dewalt 20V Max Battery is significantly more affordable at $69.99 compared to the Milwaukee 2888-20, which is priced at $141.08. This means the Dewalt-compatible grinder is about 50% cheaper than its Milwaukee counterpart. For budget-conscious consumers or those just starting with angle grinders, the OUBA model presents a compelling option without sacrificing essential features. The Milwaukee grinder, while priced higher, may offer additional functionality that some users find worth the investment, especially for more demanding tasks.
Performance Capabilities
In terms of performance, both grinders offer impressive capabilities. The Cordless Angle Grinder boasts a powerful brushless motor that can reach speeds of up to 9,500 RPM, making it suitable for grinding, cutting, rust removal, and polishing tasks. On the other hand, the Milwaukee 2888-20 delivers a maximum speed of 8,500 RPM with five variable speed settings, allowing for more precise control in different applications. While the OUBA model edges out slightly in maximum RPM, the Milwaukee's variable speed settings provide flexibility for a variety of tasks, making it a strong contender for professionals who need adaptability in their tools.
Battery Compatibility
Battery compatibility is an essential factor for cordless tools, and here the Cordless Angle Grinder shines. It is engineered to work specifically with Dewalt's 20V MAX batteries, which means users can take advantage of their existing Dewalt battery systems without incurring additional costs. This compatibility can save users money and streamline their workflow. Conversely, the Milwaukee 2888-20 is an 18V tool and does not come with a battery, which means users will need to invest in Milwaukee batteries separately. This difference could impact overall costs and convenience for users who already own Dewalt batteries.
Features and Usability
When it comes to features, both grinders are designed with user comfort and usability in mind. The Cordless Angle Grinder includes a durable stand for wood cutting, enhancing stability and accuracy during cuts. It also has a rubberized anti-slip handle with two adjustable positions for improved control. Meanwhile, the Milwaukee 2888-20 features a paddle switch and tool-free guard adjustment, enhancing user convenience. Both models are designed for ease of use, but the additional features of the OUBA model may appeal more to DIY enthusiasts who require versatility for various projects.
Safety Features
Safety is paramount when operating power tools. The Milwaukee 2888-20 includes a brake that stops the wheel in two seconds or less, which can significantly reduce the risk of accidents. This feature is especially important in professional settings where time and safety are critical. The Cordless Angle Grinder does not specify similar safety mechanisms, which may concern users prioritizing safety in their tool selection. While both grinders are designed for safe operation, the Milwaukee model offers a more advanced safety feature that could be a deciding factor for some buyers.
Portability and Design
Portability and design are essential for users who need to transport their tools frequently. The Cordless Angle Grinder is lighter and designed specifically for use with Dewalt batteries, which enhances its portability for on-site jobs. Its compact design coupled with the included stand makes it user-friendly for various tasks. The Milwaukee 2888-20, while also portable, may be bulkier due to its design and additional features. Users who often move between job sites may find the OUBA model easier to handle and transport, making it a practical choice for those in need of mobility.
Brand Reputation and Sales Rank
Brand reputation can heavily influence purchasing decisions. Milwaukee, known for its high-quality tools, ranks higher in sales with a bestseller rank of 11,053 compared to the OUBA's rank of 51,080. This suggests that Milwaukee has a strong following and is trusted by many professionals. The brand’s reputation for durability and performance may justify its higher price point for some users, especially those in professional environments where reliability is critical. Meanwhile, while OUBA may be less established, it offers a competitive product at a significantly lower price, making it ideal for casual users or DIY enthusiasts.
Which should you buy?
Ultimately, the decision between the Cordless Angle Grinder Compatible for Dewalt 20V Max Battery and the Milwaukee 2888-20 comes down to your specific needs and budget. If price is your primary concern and you already own Dewalt batteries, the OUBA model offers excellent value with its high RPM and additional features like a cutting stand. However, if you prioritize safety features and brand reputation, the Milwaukee grinder may be worth the investment despite its higher price. Consider your usage patterns and preferences carefully to choose the model that best aligns with your requirements.

