FLEX 24V Brushless Cordless 6-1/2-Inch In-Line vs Milwaukee M18 FUEL 6 1/
Updated July 2026 — FLEX 24V Brushless Cordless 6-1/2-Inch In-Line wins on runtime, Milwaukee M18 FUEL 6 1/ wins on price and power.
The FLEX offers better value and runtime, while the Milwaukee excels in power and precision.
Why FLEX 24V Brushless Cordless 6-1/2-Inch In-Line is better
Price
FLEX is about 51% cheaper than Milwaukee.
Runtime
FLEX provides up to 430 cuts in 2x4 lumber.
Design
FLEX has an innovative in-line design for better visibility.
Why Milwaukee M18 FUEL 6 1/ is better
Power
Milwaukee delivers 6,300 RPM for cleaner cuts.
Dust Management
Milwaukee features over 90% dust collection efficiency.
Professional Use
Milwaukee is designed for professional carpenters and remodelers.
Overall score
Specifications
| Spec | FLEX 24V Brushless Cordless 6-1/2-Inch In-Line | Milwaukee M18 FUEL 6 1/ |
|---|---|---|
| Motor Type | Brushless | Brushless |
| Battery | 24V Lithium | M18 REDLITHIUM |
| Cut Depth | 2-9/16" | Variable |
| Blade Change | Manual | Quick Lock |
| Warranty | 5 Years | 3 Years |
Dimension comparison
Overview of the FLEX 24V Brushless Cordless Circular Saw
The FLEX 24V Brushless Cordless 6-1/2-Inch In-Line Circular Saw is an innovative tool designed for enhanced balance and visibility during cuts. It is priced at $177.66 and is currently ranked at 108,816 in sales. This saw features a sensor-free brushless motor, which is optimized for efficiency and power while reducing friction. The unique in-line design allows users to see both sides of the blade, making for more accurate cuts. It can cut through 3x lumber in one pass and is compatible with all FLEX 24V batteries and chargers, though they are sold separately. With its exceptional runtime, users can make up to 430 cuts in 2x4 lumber with a 5.0Ah battery.
Overview of the Milwaukee M18 FUEL Plunge Track Saw
The Milwaukee M18 FUEL 6-1/2 Inch Plunge Track Saw stands out for its power and precision, priced at $365.00 with a sales rank of 78,715. This tool is designed for professional carpenters and remodelers, featuring a POWERSTATE brushless motor that delivers 6,300 RPM, making it capable of cleanly cutting through tough materials. The saw includes a variable speed dial and an adjustable cam system for precise track alignment, ensuring laser-straight cuts. With over 90% dust collection efficiency, it minimizes cleanup time, illustrating its focus on professional-grade performance.
Performance Comparison
When it comes to performance, the FLEX saw offers up to 50% faster charging capabilities, providing users with less downtime between cuts. The Milwaukee saw, however, delivers a higher RPM at 6,300, which can lead to cleaner cuts, especially in tougher materials. While the FLEX can handle 3x lumber in a single pass, the Milwaukee saw’s variable speed settings enhance its adaptability for different applications. Therefore, if you prioritize speed and precision over battery runtime, the Milwaukee might be the better choice.
Design and Usability
The FLEX 24V circular saw boasts an in-line design that provides superior balance and visibility. This innovative approach allows for clearer sightlines for more accurate cuts, making it user-friendly for various projects. In contrast, the Milwaukee plunge track saw features a quick-locking blade change system and a smooth plunging action, enhancing usability for professional applications. While both designs cater to different user needs, the FLEX excels in visibility, while Milwaukee shines in operational efficiency.
Battery and Runtime
The FLEX saw operates on a 24V lithium battery system, promising 25% longer runtime through its THERMA-TECH heat management. Users can achieve up to 430 cuts in 2x4 lumber with a 5.0Ah battery, showcasing its endurance. On the other hand, the Milwaukee tool relies on the M18 REDLITHIUM HIGH OUTPUT XC6.0 battery, which provides more cuts per charge and greater durability. Although the FLEX is about 51% cheaper than the Milwaukee, the latter's robust battery performance may justify its higher price for professionals requiring reliability and endurance.
Dust Management
Dust management is a critical aspect for most users, especially in professional settings. The Milwaukee saw features a vacuum port and dust bag, ensuring over 90% dust collection efficiency. This design significantly reduces the mess during and after cutting, making cleanup easier. The FLEX saw does not specify a dust management system, which could be a drawback for users who prioritize cleanliness. Thus, for those who value a cleaner workspace, the Milwaukee saw has a clear advantage.
Price Comparison
The FLEX saw is priced at $177.66, making it about 51% cheaper than the Milwaukee saw, which is priced at $365.00. This significant price difference can be a deciding factor for budget-conscious buyers or those who do not require the advanced features of the Milwaukee saw. However, the higher price of the Milwaukee tool does come with enhanced features and capabilities, which may justify the investment for professionals seeking high performance and durability.
Which should you buy?
Choosing between the FLEX 24V Brushless Cordless Circular Saw and the Milwaukee M18 FUEL Plunge Track Saw ultimately depends on your specific needs. If you are looking for an affordable option with a unique design and excellent runtime, the FLEX is a solid choice. However, if you require precision, power, and superior dust management for professional applications, the Milwaukee is worth the investment. Consider your typical projects and budget when making your decision, as each saw excels in different areas.

