FULLYEA Cordless Angle Grinder 4-1/ vs PRODIAMANT Fast Mortar Joint Cleaning –
Updated July 2026 — FULLYEA Cordless Angle Grinder 4-1/ leads on price and speed.
The FULLYEA Cordless Angle Grinder offers greater versatility and power, making it the better choice for general use, while the PRODIAMANT tool excels in specialized masonry tasks.
Why FULLYEA Cordless Angle Grinder 4-1/ is better
Versatility
FULLYEA grinder supports multiple applications.
Power
Brushless motor achieves 12000 RPM.
Battery Life
Includes two 4.0Ah batteries for extended use.
Why PRODIAMANT Fast Mortar Joint Cleaning – is better
Specialization
Designed specifically for mortar joint cleaning.
Price
More budget-friendly option.
Ease of Use
Simple attachment for angle grinders.
Overall score
Specifications
| Spec | FULLYEA Cordless Angle Grinder 4-1/ | PRODIAMANT Fast Mortar Joint Cleaning – |
|---|---|---|
| Motor Type | Brushless | Carbide |
| Max RPM | 12000 | N/A |
| Battery Included | Yes | No |
| Cutting Edges | N/A | 3 |
| Compatibility | Cordless | Angle Grinders |
Dimension comparison
Overview of the Products
The FULLYEA Cordless Angle Grinder and PRODIAMANT Fast Mortar Joint Cleaning tool serve different but essential functions in the world of power tools. While the angle grinder is designed for versatile applications such as cutting and grinding, the mortar joint cleaning tool specializes in masonry work. The FULLYEA grinder is priced at $46.99, while the PRODIAMANT tool costs $32.70—making the latter about 30% cheaper.
Performance and Power
When it comes to performance, the FULLYEA Cordless Angle Grinder stands out with its brushless motor that achieves a no-load speed of up to 12,000 RPM. This high speed allows for efficient cutting, grinding, and polishing across various materials, providing professional-grade results. In contrast, the PRODIAMANT tool focuses on precision with its carbide cutter designed for quick and clean mortar removal. It features three tungsten carbide edges that ensure smooth cutting, though it does not match the speed of the FULLYEA grinder.
Design and Usability
The design of the FULLYEA Cordless Angle Grinder emphasizes user convenience and safety, equipped with a rotating safety guard and dual non-slip auxiliary handles. This ergonomic design ensures stability for both right- and left-handed users during operation. On the other hand, the PRODIAMANT tool is designed with a 5/8”-11 threaded shank, making it compatible with most angle grinders. While both tools prioritize usability, the FULLYEA grinder offers greater versatility in its applications.
Battery Life and Charging
The FULLYEA Cordless Angle Grinder comes with two 4.0Ah batteries and a fast charger, allowing for extended working time outdoors. The ability to easily swap batteries means users can maintain productivity without significant downtime. The PRODIAMANT tool does not rely on batteries, as it is a cutter attachment meant to be used with a compatible angle grinder. This limits its use to when you have a grinder on hand, whereas the FULLYEA grinder can operate independently.
Versatility of Applications
The FULLYEA Cordless Angle Grinder is incredibly versatile, supporting three-speed adjustments for various tasks like metal cutting, rust removal, and surface preparation. This adaptability is crucial for users who require a multi-functional tool. Conversely, the PRODIAMANT Fast Mortar Joint Cleaning tool is specifically designed for masonry work, focusing on the removal of lime and cement mortar. While it excels in its niche, it lacks the broader application range of the FULLYEA grinder.
Pricing Comparison
In terms of pricing, the FULLYEA Cordless Angle Grinder is priced at $46.99, while the PRODIAMANT tool is available for $32.70. This price difference of about $14.29 indicates that the PRODIAMANT tool is about 30% cheaper. However, the FULLYEA grinder offers a more comprehensive set of functionalities, potentially justifying its higher price for users needing a versatile power tool.
Customer Reception and Sales Rank
The FULLYEA Cordless Angle Grinder holds a sales rank of 58,729, which indicates a solid position in the market, albeit not a bestseller. Meanwhile, the PRODIAMANT tool has a slightly better sales rank of 57,692, suggesting that it might be more popular among users looking for a specialized masonry tool. Customer reception can often reflect product effectiveness and value, and both tools have established their presence in their respective categories.
Which should you buy?
Deciding between the FULLYEA Cordless Angle Grinder and the PRODIAMANT Fast Mortar Joint Cleaning tool ultimately depends on your specific needs. If you require a versatile, powerful tool for a variety of applications, the FULLYEA grinder is the better option despite its higher price. However, if your main focus is on masonry work and you prefer a more budget-friendly choice, the PRODIAMANT tool is an excellent pick. Consider your projects and the functionality you need before making a decision.

