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Dong Cheng 20V MAX 7-1/4'' Brushless Cordless vs Worx WX439L 4.5 Amp WORXSAW 4.5" Electric Compact

Updated July 2026 — Dong Cheng 20V MAX 7-1/4'' Brushless Cordless leads on speed and power.

The Dong Cheng 20V MAX is a powerful and versatile tool ideal for professionals, while the Worx WX439L is a lightweight and budget-friendly option for DIY enthusiasts.

Why Dong Cheng 20V MAX 7-1/4'' Brushless Cordless is better

Power

850W brushless motor vs 4.5 Amp motor

Cutting Capacity

7-1/4 inch blade vs 4-1/2 inch blade

Features

Includes dust collection adaptor and multiple blades

Why Worx WX439L 4.5 Amp WORXSAW 4.5" Electric Compact is better

Weight

Lighter and more maneuverable design

Price

More affordable at $72.37

Ease of Use

Designed for one-handed operation

Overall score

Dong Cheng 20V MAX 7-1/4'' Brushless Cordless
85
Worx WX439L 4.5 Amp WORXSAW 4.5" Electric Compact
72

Specifications

SpecDong Cheng 20V MAX 7-1/4'' Brushless CordlessWorx WX439L 4.5 Amp WORXSAW 4.5" Electric Compact
Motor TypeBrushlessElectric
Max RPM50004100
Bevel Angle0-45°0-45°
Dust CollectionYesYes
Battery IncludedYesNo

Dimension comparison

Dong Cheng 20V MAX 7-1/4'' Brushless CordlessWorx WX439L 4.5 Amp WORXSAW 4.5" Electric Compact

Overview of the Dong Cheng 20V MAX and Worx WX439L

The Dong Cheng 20V MAX and the Worx WX439L are both capable circular saws, but they cater to different needs. The Dong Cheng model is a cordless powerhouse, while the Worx model is a compact, lightweight option designed for ease of use. Priced at $96.59, the Dong Cheng is about 33% more expensive than the Worx, which retails for $72.37. This price difference reflects their distinct capabilities and intended user experiences.

Power and Performance

The Dong Cheng 20V MAX boasts an 850W brushless motor that can reach speeds of 5000 RPM, making it well-suited for professional-grade cutting tasks. This power allows it to handle a variety of materials, from hardwood to PVC pipes. On the other hand, the Worx WX439L, with its 4.5 Amp motor, delivers a maximum speed of 4100 RPM. While the Worx is less powerful, it is designed for lighter tasks, cutting up to 2 inches thick stock lumber efficiently, making it a good choice for DIY projects.

Blade Size and Cutting Capacity

When it comes to blade size, the Dong Cheng features a larger 7-1/4 inch blade compared to the 4-1/2 inch blade of the Worx. This difference allows the Dong Cheng to achieve greater cutting depths, specifically 65mm at 90 degrees and 45mm at 45 degrees. This capability is especially advantageous for framing and renovation tasks. In contrast, the Worx's smaller blade makes it more maneuverable and easier to handle for quick cuts, but its cutting capacity is limited to 2 inches, which may not meet the needs of more demanding projects.

Versatility and Features

The Dong Cheng is equipped with a dust collection adaptor and comes with both a 24T and a 40T carbide blade, making it highly versatile for various cutting applications. The included rip fence guide further enhances its usability for straight cuts. The Worx, while more compact, offers features like easy depth adjustments and a quick blade change system. It also excels in one-hand operation, appealing to those who prefer a lightweight tool for around-the-house tasks.

Ergonomics and Usability

In terms of ergonomics, the Dong Cheng’s design includes an anti-slip grip and a balanced body to minimize fatigue during extended use. This is particularly beneficial for professionals who may be working on larger projects. The Worx WX439L, however, is designed for one-handed operation, making it extremely user-friendly for quick tasks and smaller DIY projects. Its lightweight design allows users to maneuver it easily without straining, ideal for home workshops.

Safety Features

Safety is paramount with both saws, but they approach it differently. The Dong Cheng includes a trigger lock switch to prevent accidental startups, essential for jobsite safety. Its design is intended to provide stable operation while navigating complex cuts. The Worx also emphasizes safety with its integrated dust port, which allows for vacuum attachment, keeping the workspace clean and reducing visibility issues while cutting. This feature not only enhances safety but also improves the overall cutting experience.

Price and Value

At $96.59, the Dong Cheng is more expensive than the Worx, which is priced at $72.37. This makes the Worx about 33% cheaper. However, the value of each tool depends on the user’s specific needs. The Dong Cheng offers higher power, larger cutting capacity, and more features geared toward professional use, while the Worx provides a budget-friendly, easier-to-handle option for casual users. The Dong Cheng has a sales rank of 87,789, while the Worx ranks slightly higher at 69,652, indicating a stronger performance in the market.

Which should you buy?

Choosing between the Dong Cheng 20V MAX and the Worx WX439L hinges on your specific needs and intended use. If you require a more powerful, versatile, and professional-grade tool for extensive cutting tasks, the Dong Cheng is worth the investment. Its advanced features and capabilities justify its higher price point. Conversely, if you are looking for an affordable, lightweight circular saw for simple home projects, the Worx WX439L provides excellent value without overwhelming complexity. The decision ultimately depends on whether you prioritize power and versatility over ease of use and budget.