Dong Cheng 20V MAX 7-1/4'' Brushless Cordless vs ZUYIYI
Updated July 2026 — Dong Cheng 20V MAX 7-1/4'' Brushless Cordless wins on cut depth and price, ZUYIYI wins on rpm.
The Dong Cheng saw is ideal for heavy-duty tasks, while the ZUYIYI saw excels in portability and speed for lighter jobs.
Why Dong Cheng 20V MAX 7-1/4'' Brushless Cordless is better
Power
850W motor vs 12000 RPM
Cutting Depth
65mm at 90° vs 2 inches
Included Blades
Comes with 24T and 40T blades
Why ZUYIYI is better
Price
$62.99 vs $96.59
Speed
12000 RPM vs 5000 RPM
Weight
More portable and lightweight
Overall score
Specifications
| Spec | Dong Cheng 20V MAX 7-1/4'' Brushless Cordless | ZUYIYI |
|---|---|---|
| Motor Power | 850W | Brushless |
| Max RPM | 5000 | 12000 |
| Cutting Depth | 65mm | 2 inches |
| Included Blades | 24T & 40T | None |
| Battery Type | 20V Li-ion | Makita 18V |
Dimension comparison
Overview of the Products
When comparing the Dong Cheng 20V MAX 7-1/4'' Brushless Cordless Circular Saw Kit and the ZUYIYI 6 Inch Cordless Mini Circular Saw, two distinct tools for different applications emerge. The Dong Cheng saw is designed for heavier tasks with its larger blade and higher torque, while the ZUYIYI saw is a more compact option aimed at versatility and ease of use.
The Dong Cheng saw, priced at $96.59, offers a robust 850W brushless motor that operates at 5000 RPM, making it suitable for cutting through tough materials like hardwood and plywood. In contrast, the ZUYIYI circular saw is available for $62.99, featuring a high-speed brushless motor that achieves an impressive 12000 RPM, making it ideal for lighter jobs and intricate cuts.
Design and Build Quality
The design and build quality of both saws cater to their intended use. The Dong Cheng saw has a rugged construction, weighing 3.8 kg, which contributes to its durability on job sites. Its sizable 7-1/4 inch blade allows for impressive cutting depths of 65mm at 90 degrees and 45mm at 45 degrees, making it suitable for framing and larger renovation projects.
On the other hand, the ZUYIYI saw is compact, making it lightweight and easy to handle. This model is designed for users who prioritize portability and maneuverability. Its smaller size allows for cutting depths of up to 2 inches at 90 degrees and 1.1 inches at 45 degrees, which is sufficient for various home projects but may not be suitable for larger lumber.
Cutting Performance
When it comes to cutting performance, the Dong Cheng saw excels in robust applications due to its powerful motor and larger blade size. The 850W motor produces a consistent speed of 5000 RPM, allowing for efficient cuts through thicker materials with ease. The saw is particularly effective for heavy-duty tasks, making it a suitable choice for contractors and serious DIY enthusiasts.
In contrast, the ZUYIYI saw, while having a smaller blade, compensates with a much higher RPM of 12000. This enables quick and clean cuts, especially for softer materials like tiles and plastics. However, its reduced cutting depth may limit its effectiveness for larger woodworking projects. The choice between the two largely depends on the materials and types of projects you plan to tackle.
Versatility and Range of Use
Versatility is a strong point for both saws, but they cater to different user needs. The Dong Cheng saw comes with two carbide blades (24T and 40T), allowing users to switch between cutting styles—ripping OSB and making fine finish cuts. This feature makes it an excellent choice for remodeling tasks and furniture crafting.
Conversely, the ZUYIYI saw is designed for a wide range of materials, including wood, tile, metal, and plastic. Its compatibility with various Makita 18V batteries enhances its versatility, allowing users to work cord-free. The ability to adjust cutting angles and depths makes it suitable for intricate projects and home improvement tasks, appealing to DIY enthusiasts.
Safety Features
Safety is paramount when using power tools, and both products offer features designed to protect the user. The Dong Cheng saw includes a trigger lock switch to prevent accidental startups, particularly important when working at heights or in confined spaces. Its anti-slip grip and balanced design also reduce arm fatigue during extended use.
The ZUYIYI saw, on the other hand, features a double protection switch to avoid accidental activation during operation. Additionally, it has mechanisms to prevent overheating and overload, ensuring safety during prolonged use. The inclusion of chip exhaust air holes also helps maintain visibility and reduces disruptions while cutting.
Battery Compatibility
Battery compatibility is a significant factor when choosing a cordless saw. The Dong Cheng saw is equipped with a 20V 4.0Ah lithium-ion battery, which is interchangeable with other tools in its range, enhancing utility on job sites. This feature allows users to maintain productivity without needing multiple battery types.
In contrast, the ZUYIYI saw is designed to work with various Makita 18V batteries, such as BL1830 and BL1860B. However, it is essential to note that batteries are not included with the saw, which may require additional investment. This compatibility allows for flexibility and convenience, especially for users already invested in the Makita battery ecosystem.
Price Comparison
Price is a crucial consideration for many buyers. The Dong Cheng saw is priced at $96.59, while the ZUYIYI saw offers a more budget-friendly option at $62.99, making it about 35% cheaper than its competitor. This price difference may appeal to casual users or those who need a saw for lighter tasks without the need for higher power capabilities.
However, the Dong Cheng saw’s higher price reflects its more robust performance and features, catering to professionals and serious DIYers who demand durability and efficiency. The decision ultimately hinges on whether the user prioritizes cost savings or advanced functionality in their tool selection.
Which should you buy?
Choosing between the Dong Cheng 20V MAX 7-1/4'' Brushless Cordless Circular Saw Kit and the ZUYIYI 6 Inch Cordless Mini Circular Saw depends largely on your specific needs and intended usage. If you are a professional or a serious DIYer looking for a powerful saw capable of handling heavy-duty tasks, the Dong Cheng saw is the clear choice with its robust motor and versatility in cutting various materials.
However, if you require a lightweight, portable tool for lighter materials or intricate projects, the ZUYIYI saw may be more suitable, especially given its lower price point. Consider your project requirements, budget, and whether you need portability or power when making your final decision.

