Milwaukee 2888-20 18V Cordless 4.5"/5" Grinder vs PRODIAMANT Fast Mortar Joint Cleaning –
Updated July 2026 — Milwaukee 2888-20 18V Cordless 4.5"/5" Grinder wins on price and rpm, PRODIAMANT Fast Mortar Joint Cleaning – wins on sales rank and length.
The Milwaukee grinder excels in versatility and performance, while the PRODIAMANT cutter is a budget-friendly option for specialized tasks.
Why Milwaukee 2888-20 18V Cordless 4.5"/5" Grinder is better
Performance
Higher RPM and variable speed settings
Versatility
Can handle multiple grinding tasks
Durability
Robust construction for long-term use
Why PRODIAMANT Fast Mortar Joint Cleaning – is better
Price
Significantly cheaper option
Specialization
Designed specifically for mortar removal
Ease of Use
Straightforward design for specific tasks
Overall score
Specifications
| Spec | Milwaukee 2888-20 18V Cordless 4.5"/5" Grinder | PRODIAMANT Fast Mortar Joint Cleaning – |
|---|---|---|
| Brand | Milwaukee | PRODIAMANT |
| Max RPM | 8500 | N/A |
| Speed Settings | 5 | 1 |
| Material | Metal | Carbide |
| Use Case | Grinding | Mortar Cleaning |
Dimension comparison
Overview of the Products
The Milwaukee 2888-20 18V Cordless Grinder is designed for versatility and high performance, while the PRODIAMANT Fast Mortar Joint Cleaning tool specializes in efficient mortar removal. Both products cater to different needs in the construction and renovation sectors, making a direct comparison essential for users deciding which tool to invest in.
The Milwaukee grinder, priced at $141.08, offers a powerful motor with the ability to deliver 8,500 RPM and variable speed settings, making it ideal for various grinding tasks. In contrast, the PRODIAMANT cutter is a more budget-friendly option at $32.70, focusing on specialized cleaning tasks for brick and masonry. Understanding these distinctions can help users pick the tool that best suits their requirements.
Price Comparison
The Milwaukee grinder comes with a price tag of $141.08, making it a significant investment for those seeking a robust tool for grinding and cutting. On the other hand, the PRODIAMANT cutter is priced at $32.70, which is about 77% cheaper than the Milwaukee grinder. This price difference makes the PRODIAMANT cutter more accessible for casual users or professionals looking for specific mortar cleaning tools without breaking the bank.
While the Milwaukee grinder’s higher cost reflects its advanced features and capabilities, users must evaluate whether they require such versatility or if a more specialized tool like the PRODIAMANT can meet their needs effectively.
Performance Capabilities
The Milwaukee 2888-20 grinder boasts a powerful performance with its maximum speed of 8,500 RPM, which allows it to handle various materials with ease. The variable speed feature, offering five settings from 3,500 RPM to 8,500 RPM, provides users with the flexibility to adapt to different grinding tasks. This makes the Milwaukee grinder suitable for both light and heavy-duty applications.
In contrast, the PRODIAMANT cutter is specifically designed for fast and clean mortar removal, featuring three tungsten carbide edges that ensure smooth cutting. While it does not match the RPM capabilities of the Milwaukee grinder, its design is tailored for precision in masonry work, making it efficient for professional repointing tasks.
Durability and Build Quality
When considering durability, the Milwaukee grinder is engineered with a robust construction aimed at long-term use in various conditions. Its quick brake feature, which stops the wheel in two seconds or less, enhances safety and prolongs its usability, especially in demanding environments.
The PRODIAMANT cutter, built for contractors and renovation work, also emphasizes quality with its European craftsmanship. It features a full depth cleaning capability with a 26 mm working length, designed to remove joints without leaving residue. However, its durability will ultimately depend on the frequency of use and the specific applications for which it is employed.
Versatility of Use
The Milwaukee grinder is a versatile tool capable of handling multiple tasks, thanks to its variable speed settings and powerful motor. It is designed for a range of applications, from grinding metal to cutting through various materials, making it an excellent choice for professionals who need a multipurpose tool.
In comparison, the PRODIAMANT cutter is specialized for mortar joint cleaning, making it less versatile overall. However, it fits most angle grinders with a 5/8”-11 threaded shank, allowing users to attach it to their existing tools. This adaptability provides an advantage for those who already own compatible grinders and are looking to add specific capabilities to their toolkit.
Ease of Use
The Milwaukee 2888-20 grinder is designed for user-friendly operation, featuring a paddle switch and tool-free guard adjustment for quick accessory changes. These features enhance the overall ease of use, particularly for those who may need to switch tasks frequently.
The PRODIAMANT cutter also focuses on user experience, allowing for full depth cleaning and efficient mortar removal with minimal effort. Although it may not offer the same breadth of features as the Milwaukee grinder, its straightforward design makes it easy to use for its specific purpose, appealing to professionals who prioritize efficiency in their work.
Market Position and Sales Rank
With a bestseller rank of 11,053, the Milwaukee grinder enjoys considerable popularity among users, reflecting its reputation as a reliable tool in the angle grinder market. This ranking indicates a strong demand and positive reception from customers, likely due to its performance and versatile capabilities.
In contrast, the PRODIAMANT cutter has a sales rank of 57,692, suggesting it is less commonly purchased. This could be attributed to its specialized nature, as it appeals primarily to those in need of specific mortar cleaning tools rather than general grinding applications.
Which should you buy?
Choosing between the Milwaukee 2888-20 grinder and the PRODIAMANT cutter ultimately depends on your specific needs. If you require a versatile, high-performance tool for various grinding tasks, the Milwaukee grinder is well worth the investment at $141.08. Its powerful motor and variable speed settings offer significant advantages for diverse applications.
However, if your primary goal is efficient mortar removal and you are looking for a more budget-friendly option, the PRODIAMANT cutter at $32.70 provides an effective solution tailored for masonry work. Evaluate your requirements carefully to determine which tool aligns best with your projects and budget.

