Funnywhale Cordless Cut Off Tool Compatible With DeWalt 20V vs Dong Cheng 20V MAX 7-1/4'' Brushless Cordless
Updated July 2026 — Funnywhale Cordless Cut Off Tool Compatible With DeWalt 20V wins on rpm, Dong Cheng 20V MAX 7-1/4'' Brushless Cordless wins on price and weight.
The Funnywhale tool is ideal for portability and quick cuts, while the Dong Cheng offers more robust performance and versatility.
Why Funnywhale Cordless Cut Off Tool Compatible With DeWalt 20V is better
Lightweight
Funnywhale weighs only 2.12 lbs.
High RPM
Funnywhale has a no-load speed of 19,000 RPM.
Compact Size
Funnywhale uses a 3-inch blade for tight spaces.
Why Dong Cheng 20V MAX 7-1/4'' Brushless Cordless is better
Blade Size
Dong Cheng has a 7-1/4 inch blade for deeper cuts.
Battery Included
Dong Cheng comes with a 4.0Ah battery and charger.
Bevel Capability
Dong Cheng supports 0-45 degree bevel adjustments.
Overall score
Specifications
| Spec | Funnywhale Cordless Cut Off Tool Compatible With DeWalt 20V | Dong Cheng 20V MAX 7-1/4'' Brushless Cordless |
|---|---|---|
| Motor Type | Brushless | Brushless |
| Safety Features | Overheat Protection | Trigger Lock |
| Dust Collection | Removable Cover | Integrated Port |
| Power | N/A | 850W |
| Usage | Portable Cuts | Heavy-Duty |
Dimension comparison
Overview of the Products
When comparing the Cordless Cut Off Tool Compatible With DeWalt 20V MAX Battery and the Dong Cheng 20V MAX 7-1/4'' Brushless Cordless Circular Saw Kit, we find two distinct tools catering to different user needs. The Funnywhale tool is priced at $65.99, while the Dong Cheng model comes in at $96.59, making it approximately 32% more expensive. Each of these saws has its unique features, performance capabilities, and intended applications that may appeal to different types of users.
Power and Performance
The Funnywhale Cordless Cut Off Tool boasts a powerful brushless motor with a no-load speed of 19,000 RPM, providing rapid cuts through various materials such as metal, wood, plastic, and tile. In contrast, the Dong Cheng circular saw features an 850W brushless motor and a cutting speed of 5,000 RPM. While the Funnywhale tool offers higher RPMs for quick cuts, the Dong Cheng model’s motor is designed for heavy-duty applications, making it suitable for more robust tasks. Users looking for portability without sacrificing power may prefer the Funnywhale tool, while those needing reliable performance for demanding projects might opt for the Dong Cheng.
Blade Size and Cutting Capability
The blade size is a significant differentiator between these two products. The Funnywhale tool uses a compact 3-inch blade, ideal for precision cuts in tight spaces. However, it has a fixed cutting angle and does not support bevel adjustments, which could limit versatility. On the other hand, the Dong Cheng saw features a larger 7-1/4 inch blade with a cutting depth of 65mm at 90 degrees and 45mm at 45 degrees, allowing for more profound cuts in standard lumber and other materials. For users requiring more flexibility in cutting angles and depths, the Dong Cheng is the clear winner.
Portability and Design
Portability is a crucial factor for many users. The Funnywhale tool weighs only 2.12 lbs, making it incredibly lightweight and easy to handle with one hand. This compact design is beneficial for quick jobs or projects requiring mobility. Conversely, the Dong Cheng saw weighs 3.8 kg (approximately 8.4 lbs), which, while still manageable, is heavier. The added weight comes with the advantage of stability during use, especially for larger cuts. If you prioritize a lightweight tool for quick tasks, the Funnywhale could be more appealing, while the Dong Cheng may better suit those who require a more robust, stable tool for larger projects.
Safety Features
Safety is paramount when using power tools. The Funnywhale tool includes a safety switch to prevent accidental startups and features an overheat protection system that halts operation during extended heavy-duty use. This is essential for maintaining user safety during rigorous tasks. The Dong Cheng saw also prioritizes user safety with a trigger lock switch that prevents unintentional startups, which is particularly useful when working on ladders or in challenging positions. Both tools incorporate safety features, but the specifics of their designs may resonate differently with users based on their typical use cases.
Dust Collection and Cleanup
Both tools include mechanisms for dust management, but they differ in their implementation. The Funnywhale tool features a removable dust cover with an AirLock connection, allowing for easy attachment to a vacuum for effective dust collection. Meanwhile, the Dong Cheng saw has an integrated dust port that connects to wet/dry vacs, enhancing dust extraction during cutting. This feature is particularly beneficial for maintaining a clean workspace, especially when undertaking larger projects. Users focused on minimizing cleanup time may find the Dong Cheng's integrated system more convenient.
Battery Compatibility and Runtime
Battery compatibility can greatly influence a user’s choice of tool. The Funnywhale circular saw is compatible with various DeWalt 20V MAX batteries, such as DCB200 and DCB201, but does not include a battery with the purchase. In contrast, the Dong Cheng kit comes with a 4.0Ah battery and charger, providing everything needed for immediate use. The inclusion of a battery with the Dong Cheng model adds value, especially for those who do not already own compatible batteries. Therefore, if you are looking for a complete package right out of the box, the Dong Cheng offers a more comprehensive solution.
Which should you buy?
Choosing between the Funnywhale Cordless Cut Off Tool and the Dong Cheng 20V MAX Circular Saw Kit ultimately depends on your specific needs and preferences. If you seek a lightweight, portable tool for quick, precise cuts in confined spaces, the Funnywhale is an excellent choice at $65.99. However, for those requiring more robust performance, versatility in cutting depths and angles, and a complete kit with battery included, the Dong Cheng at $96.59 represents a solid investment. Consider your typical projects and usage scenarios to determine which tool will best serve your needs.

