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OUBA Cordless Angle Grinder Compatible for Dewalt 20V vs FULLYEA Cordless Angle Grinder 4-1/2", Brushless

Updated July 2026 — OUBA Cordless Angle Grinder Compatible for Dewalt 20V wins on price and handle, FULLYEA Cordless Angle Grinder 4-1/2", Brushless wins on max speed and battery count.

The FULLYEA Cordless Angle Grinder offers better speed and battery value, making it the superior choice for most users.

Why OUBA Cordless Angle Grinder Compatible for Dewalt 20V is better

Compatibility

Compatible with Dewalt 20V batteries.

Stability

Includes a durable stand for wood cutting.

Variable Speed

Offers three variable speed settings.

Why FULLYEA Cordless Angle Grinder 4-1/2", Brushless is better

Price

Cheaper by $20.

Speed

Higher maximum speed of 12000 RPM.

Battery

Includes two 4.0Ah batteries.

Overall score

OUBA Cordless Angle Grinder Compatible for Dewalt 20V
75
FULLYEA Cordless Angle Grinder 4-1/2", Brushless
85

Specifications

SpecOUBA Cordless Angle Grinder Compatible for Dewalt 20VFULLYEA Cordless Angle Grinder 4-1/2", Brushless
Motor TypeBrushlessBrushless
Speed Settings33
RPM Range95006000-12000
ChargerFastStandard
Grip TypeAnti-slipStandard

Dimension comparison

OUBA Cordless Angle Grinder Compatible for Dewalt 20VFULLYEA Cordless Angle Grinder 4-1/2", Brushless

Overview of the Products

The Cordless Angle Grinder Compatible for Dewalt 20V Max Battery is priced at $69.99, while the FULLYEA Cordless Angle Grinder 4-1/2" comes in at $49.99, making it about 17% cheaper than its competitor. Both grinders feature brushless motors but differ significantly in their maximum speeds and battery configurations. Choosing between these tools will largely depend on your budget and specific needs for grinding and cutting tasks.

Design and Build Quality

The Cordless Angle Grinder from OUBA is engineered for compatibility with Dewalt 20V batteries and incorporates a durable stand for wood cutting, enhancing stability and accuracy. Its ergonomic design includes a rubberized anti-slip handle that offers two adjustable positions for improved control. Meanwhile, the FULLYEA Cordless Angle Grinder has a universal size that accepts a variety of 4-1/2 inch blades and includes a spindle lock for easy disc changes. Both grinders are portable, but the OUBA model’s stand may provide an edge for those focused on woodwork.

Power and Performance

In terms of power, the OUBA grinder features a brushless motor that can reach speeds of up to 9,500 RPM. This allows for efficient grinding, cutting, and polishing tasks. Conversely, the FULLYEA grinder boasts a more impressive maximum speed of 12,000 RPM, which may be beneficial for users needing faster performance in cutting and grinding. Therefore, if speed is a primary concern for your projects, the FULLYEA grinder has the advantage.

Battery and Charging

When it comes to battery offerings, the OUBA grinder includes one 4.0Ah battery and a fast charger, while the FULLYEA model comes with two 4.0Ah batteries and a charger. This gives the FULLYEA grinder a significant advantage in terms of runtime and convenience. Users can switch batteries easily, making it more suitable for extended jobs without downtime. The inclusion of an extra battery in the FULLYEA package also adds to its overall value.

Speed Settings

The OUBA grinder offers three variable speed settings, allowing users to adjust the speed according to the task at hand. This feature enhances precision and work quality, particularly for different materials. The FULLYEA grinder also has three speed settings, with a range from 6,000 RPM to 12,000 RPM. This flexibility makes it adaptable for a wider variety of applications, providing users with options for both high-speed cutting and lower-speed grinding.

User Experience and Comfort

Comfort and ease of use are crucial when selecting an angle grinder. The OUBA grinder’s rubberized anti-slip handle enhances grip and control, making it easier to operate in various positions. However, the FULLYEA grinder is designed to be cordless and user-friendly, enabling operation in tight spaces without the hassle of cords. Both models are designed for ease of use, but the FULLYEA's portability may appeal more to users who prioritize mobility.

Customer Support and Service

Customer service can often influence a buyer's decision. FULLYEA is committed to providing high-quality tools and excellent service, which may reassure potential buyers. The brand emphasizes its readiness to assist users with any questions or concerns regarding their products. While OUBA does not specifically mention customer service details, the overall construction and compatibility with Dewalt batteries may indicate a reliable user experience.

Which should you buy?

Ultimately, the decision between the Cordless Angle Grinder Compatible for Dewalt 20V Max Battery and the FULLYEA Cordless Angle Grinder 4-1/2" hinges on your specific needs and budget. If you require a grinder with a higher maximum speed and the convenience of two batteries for extended use, the FULLYEA model at $49.99 is the better choice. However, if you prioritize compatibility with Dewalt batteries and a stable cutting setup, the OUBA grinder at $69.99 may be worth the additional investment. Consider what features are most critical for your projects to make the best decision.