Milwaukee 2880-20 M18 Fuel Brushless Lithium-Ion vs RYOBI PCL445B ONE+ 18V Cordless 4-1/2 in. Angle Grinder
Updated July 2026 — Milwaukee 2880-20 M18 Fuel Brushless Lithium-Ion wins on comfort and power, RYOBI PCL445B ONE+ 18V Cordless 4-1/2 in. Angle Grinder wins on value and weight.
The Milwaukee 2880-20 offers superior features and performance, making it the better choice for serious users, while the RYOBI PCL445B is a budget-friendly option for casual tasks.
Why Milwaukee 2880-20 M18 Fuel Brushless Lithium-Ion is better
Performance
Milwaukee has advanced safety features and higher RPM.
Durability
Milwaukee is built for heavy-duty applications.
User Comfort
Milwaukee includes anti-vibration technology.
Why RYOBI PCL445B ONE+ 18V Cordless 4-1/2 in. Angle Grinder is better
Price
RYOBI is significantly cheaper.
Weight
RYOBI is lighter and easier to handle.
Ease of Use
RYOBI has quick accessory changes.
Overall score
Specifications
| Spec | Milwaukee 2880-20 M18 Fuel Brushless Lithium-Ion | RYOBI PCL445B ONE+ 18V Cordless 4-1/2 in. Angle Grinder |
|---|---|---|
| Motor RPM | 8,500 | 9,000 |
| Spindle Lock | Yes | Yes |
| Handle Type | Anti-Vibration | 3-Position |
| Overload Protection | Yes | No |
| Weight | 5.5 lbs | 4.2 lbs |
Dimension comparison
Price Comparison
When it comes to pricing, the RYOBI PCL445B ONE+ is significantly more budget-friendly than the Milwaukee 2880-20. Priced at $54.00, the RYOBI is about 62% cheaper than the Milwaukee, which retails for $143.99. This substantial price difference makes the RYOBI an attractive option for those looking to save money while still obtaining a reliable cordless angle grinder. While the Milwaukee does offer higher-end features, the cost may deter casual users or those on a tighter budget.
Brand Reputation
Milwaukee and RYOBI both have strong reputations in the power tool industry, but they cater to slightly different audiences. Milwaukee is often regarded as a premium brand, known for its professional-grade tools and innovative technology. The Milwaukee 2880-20, with its electronic clutch for kickback protection and overload protection, reflects this high standard and is ranked 6,936 in sales, indicating its popularity among serious users. In contrast, RYOBI is typically seen as a more approachable brand, appealing to DIYers and homeowners. The RYOBI PCL445B, while popular with a sales rank of 18,870, may not have the same level of professional endorsement.
Features and Performance
The performance features of both grinders cater to different needs. The Milwaukee 2880-20 boasts an electronic clutch for kickback protection and overload protection, enhancing user safety and prolonging motor life. It also includes an anti-vibration side handle, which contributes to user comfort during prolonged use. The RYOBI PCL445B, while lacking some of these advanced features, still delivers a powerful performance with a 9,000 RPM motor. It also has a spindle lock for quick accessory changes and a three-position side handle, allowing for greater control. For users who prioritize safety and durability, the Milwaukee may be the better choice, while RYOBI provides sufficient performance for general tasks.
Battery Compatibility
Battery compatibility is a crucial consideration for cordless tools. The Milwaukee 2880-20 is compatible with all M18 batteries, providing users with flexibility and convenience if they already own other Milwaukee tools. This compatibility can be a significant advantage for users invested in the Milwaukee ecosystem. On the other hand, the RYOBI PCL445B is part of the ONE+ system, which means it works with any 18V RYOBI battery. However, it is important to note that both grinders are sold as bare tools, meaning that batteries and chargers must be purchased separately. This could lead to additional costs for users new to either brand.
Durability and Build Quality
Durability is a key factor when selecting a power tool, and both brands offer sturdy construction. The Milwaukee 2880-20 includes features designed for longevity, such as overload protection to maximize motor life. Its robust build is likely to withstand demanding tasks in a professional setting. Meanwhile, the RYOBI PCL445B features a die-cast metal gear case, enhancing its durability for everyday use. While both grinders are constructed to endure, the Milwaukee is likely better suited for heavy-duty applications, whereas the RYOBI is ideal for lighter, home-based projects.
User Comfort and Ergonomics
User comfort is essential for any power tool, especially during extended use. The Milwaukee 2880-20 incorporates an anti-vibration side handle designed to increase user comfort and safety, making it a more ergonomic choice for professionals who may use the tool for longer periods. Conversely, the RYOBI PCL445B offers a three-position side handle, providing some flexibility in grip options. However, it lacks the advanced vibration reduction features found in the Milwaukee model. For users prioritizing comfort during prolonged tasks, the Milwaukee may be the superior option.
Maintenance and Ease of Use
When it comes to maintenance and ease of use, both grinders offer user-friendly features. The RYOBI PCL445B includes a spindle lock for quick accessory changes, facilitating a hassle-free experience when switching between tasks. It also features on-board wrench storage, which can help keep everything organized. The Milwaukee 2880-20 excels in safety features but may require more attention to ensure the electronic clutch and overload protection systems remain functional. Ultimately, both tools are designed for ease of use, but RYOBI's features may appeal more to casual users seeking convenience.
Which should you buy?
Choosing between the Milwaukee 2880-20 and the RYOBI PCL445B ultimately depends on your specific needs and budget. If you require a high-performance grinder with advanced safety features and are willing to invest more, the Milwaukee is the clear choice. However, if you're looking for a reliable, budget-friendly option for light to moderate tasks, the RYOBI PCL445B stands out as an excellent value at $54.00. Assess your usage requirements, existing battery compatibility, and desired features to make the best decision for your projects.

