Milwaukee Electric - M18 Fuel 6-1/ vs Ryobi P506 One+ Lithium Ion 18V 5 1/
Updated July 2026 — Milwaukee Electric - M18 Fuel 6-1/ wins on rpm and price, Ryobi P506 One+ Lithium Ion 18V 5 1/ wins on battery and weight.
The Milwaukee saw offers superior performance and features, making it ideal for professionals, while the Ryobi is a budget-friendly option for casual users.
Why Milwaukee Electric - M18 Fuel 6-1/ is better
Performance
Milwaukee is designed for professional use with a larger blade.
Build Quality
Milwaukee tools are known for their durability.
Motor Technology
Milwaukee features a brushless motor for better efficiency.
Why Ryobi P506 One+ Lithium Ion 18V 5 1/ is better
Price
Ryobi is significantly cheaper.
Weight
Ryobi is more portable and easier to handle.
Laser Guide
Ryobi includes an integrated laser for better cutting accuracy.
Overall score
Specifications
| Spec | Milwaukee Electric - M18 Fuel 6-1/ | Ryobi P506 One+ Lithium Ion 18V 5 1/ |
|---|---|---|
| Brand | Milwaukee | RYOBI |
| Motor Type | Brushless | Brushed |
| Max Speed | 5000 RPM | 4700 RPM |
| Laser Guide | No | Yes |
| Battery System | M18 | ONE+ |
Dimension comparison
Overview
In this comparison, we examine the Milwaukee Electric M18 Fuel 6-1/2 Inch Circular Saw and the Ryobi P506 One+ Lithium Ion 18V 5-1/2 Inch Circular Saw. The Milwaukee saw is priced at $154.00, whereas the Ryobi model is significantly cheaper at $69.00, making it about 55% less expensive. Each saw offers unique features tailored for different user needs, and understanding these differences is crucial for making an informed purchase.
Brand Reputation
Milwaukee and Ryobi are both respected brands in the power tool industry, but they cater to different segments. Milwaukee is known for its high-performance tools and is often favored by professionals, reflected in its bestseller rank of 11,220. In contrast, Ryobi targets the DIY and home improvement market, with a lower sales rank of 100,142. This distinction may influence your choice, especially if you're looking for a tool that can handle heavy-duty tasks versus one for lighter, occasional use.
Price Comparison
The Milwaukee saw retails for $154.00, while the Ryobi P506 is priced at $69.00. This represents a significant difference in price, with the Ryobi being about 55% cheaper. While the lower price of the Ryobi may make it an attractive option for casual users or those on a budget, potential buyers should consider whether the features and build quality of the Milwaukee justify the higher cost for their specific needs.
Cutting Performance
When it comes to cutting performance, the Milwaukee saw features a 6-1/2 inch blade, while the Ryobi comes with a slightly smaller 5-1/2 inch blade. This difference can affect the depth of cut and the types of materials each saw can effectively handle. The Milwaukee saw is designed for more demanding applications, making it better suited for professional use. Conversely, the Ryobi boasts a maximum speed of 4,700 revolutions per minute, which provides decent cutting power for home projects, but may fall short for more intensive tasks.
Features and Usability
The Milwaukee Circular Saw is equipped with brushless motor technology, which enhances efficiency and runtime. On the other hand, the Ryobi P506 includes an integrated laser guide, aiming to improve cutting accuracy and visibility, especially for angled cuts up to 50 degrees. While both saws have unique features, the Milwaukee's advanced motor technology may provide better long-term performance, while the Ryobi's laser guide can be particularly beneficial for beginners or less experienced users.
Battery Compatibility
Battery compatibility is another important consideration in this comparison. The Ryobi P506 is part of the RYOBI ONE+ system, meaning it is compatible with all RYOBI 18-Volt batteries. This can be a significant advantage if you already own other Ryobi tools, as it allows for interchangeable battery usage. In contrast, the Milwaukee saw operates on its own M18 battery system, which may not be as versatile if you are looking to expand your tool collection with different brands.
Weight and Portability
Weight and portability can greatly impact user experience, especially for those who need to move their tools frequently. While specific weight figures aren't provided, the Milwaukee saw is generally known for being robust, which may add to its overall heft. The Ryobi, being a more compact model designed for lighter tasks, is likely easier to handle for extended periods. This makes the Ryobi a fitting choice for DIY enthusiasts or those who require a portable solution for various home projects.
Safety Features
Safety features are crucial in any power tool comparison. While both saws focus on user safety, the Ryobi's integrated laser guide not only aids in precision but also enhances visibility, which can help prevent accidents during use. Milwaukee's focus on durability and build quality also contributes to safety, but specific safety features are not highlighted in the available data. Therefore, if safety and ease of use are paramount, the Ryobi may have a slight edge due to its enhanced visibility features.
Which should you buy?
Choosing between the Milwaukee Electric M18 Fuel 6-1/2 Inch Circular Saw and the Ryobi P506 One+ Lithium Ion 18V 5-1/2 Inch Circular Saw ultimately depends on your specific needs. If you require a high-performance tool for professional-grade tasks and are willing to invest, the Milwaukee is the better choice. However, if you are a DIY enthusiast looking for a budget-friendly, versatile tool for lighter projects, the Ryobi offers excellent value at a significantly lower price. Consider your project requirements and budget to make the best decision for your situation.

