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Milwaukee 2880-20 M18 Fuel Brushless Lithium-Ion vs PRODIAMANT Fast Mortar Joint Cleaning –

Updated July 2026 — Milwaukee 2880-20 M18 Fuel Brushless Lithium-Ion leads on price.

The Milwaukee grinder is a versatile, high-performance tool, while the PRODIAMANT cutter is a cost-effective solution for specific masonry tasks.

Why Milwaukee 2880-20 M18 Fuel Brushless Lithium-Ion is better

Versatility

Can handle various grinding tasks.

Safety Features

Includes electronic clutch and overload protection.

User Comfort

Anti-vibration side handle for extended use.

Why PRODIAMANT Fast Mortar Joint Cleaning – is better

Price

Significantly cheaper at $32.70.

Specialization

Designed specifically for mortar joint cleaning.

Compatibility

Fits most standard angle grinders.

Overall score

Milwaukee 2880-20 M18 Fuel Brushless Lithium-Ion
85
PRODIAMANT Fast Mortar Joint Cleaning –
65

Specifications

SpecMilwaukee 2880-20 M18 Fuel Brushless Lithium-IonPRODIAMANT Fast Mortar Joint Cleaning –
Sales Rank693657692
Battery CompatibilityAll M185/8"-11
Cutting EdgesN/A3 Tungsten Carbide
Motor ProtectionYesNo
ErgonomicsHighStandard

Dimension comparison

Milwaukee 2880-20 M18 Fuel Brushless Lithium-IonPRODIAMANT Fast Mortar Joint Cleaning –

Overview of the Products

In this comparison, we will explore the Milwaukee 2880-20 M18 Fuel Brushless Lithium-Ion Cordless Small Angle Grinder and the PRODIAMANT Fast Mortar Joint Cleaning tool. The Milwaukee grinder is priced at $143.99, while the PRODIAMANT cutter is significantly more budget-friendly at $32.70, making it about 77% cheaper than the grinder. However, these tools serve different purposes and cater to distinct user needs, which we will break down in the following sections.

Price Comparison

When considering price, the Milwaukee grinder stands out at $143.99, while the PRODIAMANT cutter is much more economical at $32.70. The price difference of $111.29 reflects the Milwaukee's position as a high-performance power tool, suitable for a variety of grinding tasks. In contrast, the PRODIAMANT, though considerably cheaper, is specifically designed for cleaning mortar joints in masonry. If you're looking for a versatile tool that can handle various tasks, the Milwaukee may justify its higher price. However, for specialized jobs, the price of the PRODIAMANT cutter may be more appealing.

Features and Functionality

The Milwaukee grinder boasts several features aimed at enhancing user safety and tool longevity. It includes an electronic clutch for kickback protection, overload protection to maximize motor life, and an anti-vibration side handle for increased comfort. The grinder is compatible with all M18 batteries, making it a versatile choice for users of Milwaukee's battery system. On the other hand, the PRODIAMANT cutter features three tungsten carbide edges designed for smooth and controlled cutting, particularly for mortar removal. Its full depth cleaning capability allows for a working length of 26 mm, making it efficient for professional repointing tasks. Both tools excel in their respective functions, but the Milwaukee offers broader functionality.

Design and Ergonomics

The design of the Milwaukee grinder emphasizes user comfort and safety, featuring an anti-vibration side handle that helps reduce fatigue during extended use. This is particularly beneficial for professionals who may spend long hours on the job. In contrast, the PRODIAMANT cutter's design is straightforward and focused on functionality, fitting standard 5/8”-11 threaded angle grinders. While both tools are built with the user in mind, the Milwaukee's ergonomic features give it an edge for those prioritizing comfort in prolonged applications.

Performance Metrics

Performance-wise, the Milwaukee 2880-20 is engineered for high-demand tasks, reflected in its bestseller rank of 6,936, indicating strong popularity among users. Its advanced features lead to better performance in various grinding applications. The PRODIAMANT cutter, with a sales rank of 57,692, is specialized for mortar joint cleaning, excelling in that niche but lacking the versatility of the Milwaukee grinder. For users needing a robust solution for various cutting tasks, the Milwaukee may be the better choice, while the PRODIAMANT is ideal for specific masonry projects.

Compatibility and Versatility

The Milwaukee grinder is compatible with all M18 batteries, enhancing its versatility across different applications. This adaptability makes it suitable for both casual and professional use, as users can utilize various grinding accessories thanks to its 5/8"-11 spindle. The PRODIAMANT cutter, while specifically designed for mortar removal, fits most angle grinders with a 5/8”-11 threaded shank. This compatibility is beneficial for users who already own a standard angle grinder and are looking for a specialized attachment. However, the Milwaukee's broader application range makes it a more versatile option overall.

User Comfort and Safety

User safety is a key consideration in both tools. The Milwaukee grinder features an electronic clutch for kickback protection and overload protection, which are vital for safe operation during heavy-duty tasks. The anti-vibration side handle also contributes to user comfort, particularly during extended grinding sessions. Meanwhile, the PRODIAMANT cutter, though not equipped with specific safety features, is designed for efficient and clean mortar removal, minimizing the risk of damage to surrounding materials. While both tools emphasize safety, the Milwaukee's advanced safety features make it more suitable for high-intensity applications.

Maintenance and Longevity

In terms of maintenance, the Milwaukee grinder is built with overload protection to maximize motor life, which is crucial for durability in demanding environments. Its construction supports extended use, making it a long-term investment for professionals. The PRODIAMANT cutter, with its carbide edges, offers a long service life for mortar removal tasks, but its lifespan will largely depend on the frequency of use and the conditions of the worksite. While both products are designed for longevity, the Milwaukee's advanced features may result in lower maintenance costs over time, making it a potentially more economical choice for frequent users.

Which should you buy?

Choosing between the Milwaukee 2880-20 and the PRODIAMANT Fast Mortar Joint Cleaning tool ultimately depends on your specific needs. If you require a versatile, high-performance angle grinder for various applications, the Milwaukee grinder at $143.99 is the better investment. However, for those primarily focused on masonry work and looking for a cost-effective solution, the PRODIAMANT cutter at $32.70 is an excellent choice. Each tool excels in its domain, so consider your intended use and budget before making a decision.