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FLEX 24V Brushless Cordless 6-1/2-Inch In-Line vs SKILSAW SPT77WML-01 15-Amp 7-1/4-Inch Lightweight

Updated July 2026 — FLEX 24V Brushless Cordless 6-1/2-Inch In-Line wins on runtime and design, SKILSAW SPT77WML-01 15-Amp 7-1/4-Inch Lightweight wins on weight and power.

The FLEX 24V Brushless Circular Saw offers innovative design and superior runtime, while the SKILSAW SPT77WML-01 excels in lightweight construction and established brand reputation.

Why FLEX 24V Brushless Cordless 6-1/2-Inch In-Line is better

Runtime

FLEX saw can make up to 430 cuts in 2x4 lumber.

Design

FLEX features an in-line design for better visibility.

Price

FLEX is slightly cheaper at $177.66.

Why SKILSAW SPT77WML-01 15-Amp 7-1/4-Inch Lightweight is better

Power

SKILSAW has a robust 15 Amp motor.

Weight

SKILSAW is the lightest worm drive saw at 11.5 lbs.

Sales Rank

SKILSAW has a better sales rank at 26,210.

Overall score

FLEX 24V Brushless Cordless 6-1/2-Inch In-Line
78
SKILSAW SPT77WML-01 15-Amp 7-1/4-Inch Lightweight
85

Specifications

SpecFLEX 24V Brushless Cordless 6-1/2-Inch In-LineSKILSAW SPT77WML-01 15-Amp 7-1/4-Inch Lightweight
Motor TypeBrushless15 Amp
Cut Capacity2-9/16 inchesNot specified
Weight7.5 lbs11.5 lbs
Battery24V (sold separately)Corded
Bevel CapacityNot specified53°

Dimension comparison

FLEX 24V Brushless Cordless 6-1/2-Inch In-LineSKILSAW SPT77WML-01 15-Amp 7-1/4-Inch Lightweight

Overview of the FLEX 24V Brushless Cordless Circular Saw

The FLEX 24V Brushless Cordless 6-1/2-Inch In-Line Circular Saw offers innovative design and advanced technology, making it a strong contender in the circular saw market. Priced at $177.66, this saw boasts features that prioritize efficiency and user experience. With its unique in-line design, it promises superior balance and visibility, allowing for more accurate cuts. The saw's brushless motor enhances power and runtime, effectively optimizing cutting performance.

Overview of the SKILSAW SPT77WML-01

The SKILSAW SPT77WML-01, priced at $179.00, is marketed as the lightest worm drive circular saw available. Weighing just 11.5 lbs, it combines rugged magnesium construction with a powerful 15 Amp motor, allowing users to tackle tough jobs with ease. This saw is designed for both durability and performance, featuring a bevel capacity that enables users to make a wider variety of cuts. The SKILSAW SPT77WML-01 is also designed to minimize user fatigue, making it suitable for prolonged use.

Power and Performance Comparison

When it comes to power, the SKILSAW SPT77WML-01 features a robust 15 Amp motor, ensuring it can rip through lumber efficiently. In contrast, the FLEX 24V saw utilizes a sensor-free brushless motor that enhances power by eliminating friction. While the SKILSAW’s motor delivers consistent performance, the FLEX saw claims to offer 20% more power with its 24V lithium battery system. This difference in power systems may appeal to users who prioritize battery efficiency and runtime, especially since the FLEX saw promises up to 430 cuts in 2x4 lumber with a 5.0Ah battery, although the battery is sold separately.

Design and Usability

The FLEX saw features a unique in-line design that enhances visibility on both sides of the blade, providing greater control for accurate cuts. This innovation is particularly beneficial for users who demand precision in their work. Conversely, the SKILSAW SPT77WML-01, with its lightweight magnesium construction, is designed to reduce user fatigue during extended periods of use. While both saws prioritize user comfort and effectiveness, the FLEX's design may be more advantageous for those focusing on visibility and control, whereas the SKILSAW's lightweight build caters to users needing a saw that is easy to handle throughout a long workday.

Cutting Capacity

The FLEX 24V saw has a maximum cutting capacity that allows it to cut 3x lumber in a single pass, with a depth of cut measuring 2-9/16 inches. This feature is particularly appealing to professionals who require efficiency in their cutting tasks. On the other hand, the SKILSAW SPT77WML-01 offers a cut-ready depth of cut system, which allows for quick and accurate depth measurements. However, it does not specify the maximum cutting capacity in its description. This may be a consideration for users who require precise cutting specifications for various materials.

Runtime and Battery

The FLEX saw excels in terms of runtime, boasting the ability to make up to 430 cuts in 2x4 lumber with a 5.0Ah battery, which highlights its efficiency when powered by FLEX’s 24V batteries. However, it's important to note that the battery and charger are sold separately, which could lead to additional costs. The SKILSAW SPT77WML-01 does not rely on battery performance, as it is corded and powered by a 15 Amp motor. This means that users of the SKILSAW will not experience any downtime related to battery charging, making it potentially more suitable for uninterrupted work sessions.

Price Comparison

The FLEX 24V Brushless Circular Saw is priced at $177.66, while the SKILSAW SPT77WML-01 is slightly higher at $179.00. This makes the FLEX saw about $1.34 or approximately 0.75% cheaper than the SKILSAW. Given that the price difference is minimal, potential buyers may need to weigh the specific features and performance of each saw to determine which provides better value according to their needs.

Brand Reputation and Sales Rank

Both brands have established themselves in the power tool market, but the SKILSAW SPT77WML-01 has a significantly better sales rank at 26,210 compared to the FLEX saw's rank of 108,816. This may indicate a higher level of consumer trust and satisfaction with the SKILSAW product. Buyers often consider sales rank as a reflection of product popularity and reliability, making the SKILSAW a potentially safer choice for those prioritizing proven performance.

Which should you buy?

Ultimately, choosing between the FLEX 24V Brushless Cordless Circular Saw and the SKILSAW SPT77WML-01 hinges on personal preferences and specific needs. If you value innovative design with superior visibility and runtime efficiency, the FLEX saw could be the right choice. Conversely, if you prefer a lightweight, corded option with a strong sales reputation and robust power, the SKILSAW may be the better fit. Consider your typical cutting tasks, work environment, and whether you prefer the convenience of a battery-operated saw or the consistent power of a corded model.