AOBEN Cordless Angle Grinder 4-1/ vs Dong Cheng DongCheng Angle Grinder 4-1/
Updated July 2026 — AOBEN Cordless Angle Grinder 4-1/ wins on battery and accessories, Dong Cheng DongCheng Angle Grinder 4-1/ wins on price and weight.
The AOBEN Cordless Angle Grinder offers superior versatility and mobility, while the DongCheng Angle Grinder is a budget-friendly option with high performance for basic tasks.
Why AOBEN Cordless Angle Grinder 4-1/ is better
Cordless Design
AOBEN offers cordless operation for greater mobility.
Battery Life
AOBEN includes two 4.0Ah batteries for extended use.
Complete Kit
AOBEN comes with a comprehensive accessory kit.
Why Dong Cheng DongCheng Angle Grinder 4-1/ is better
Price
DongCheng is significantly cheaper at $32.99.
Speed
DongCheng has a higher maximum speed of 11,800 RPM.
Weight
DongCheng is lighter at 4.2 lbs, reducing user fatigue.
Overall score
Specifications
| Spec | AOBEN Cordless Angle Grinder 4-1/ | Dong Cheng DongCheng Angle Grinder 4-1/ |
|---|---|---|
| Motor Type | Brushless | Copper |
| Max RPM | 9500 | 11800 |
| Power Source | Cordless | Corded |
| Weight | Not Specified | 4.2 lbs |
| Included Accessories | Complete Kit | Basic Kit |
Dimension comparison
Overview of the AOBEN Cordless Angle Grinder
The AOBEN Cordless Angle Grinder is a powerful tool priced at $79.99, making it a solid investment for those needing versatility and mobility in their grinding tasks. This grinder is equipped with a brushless motor, which not only offers longer lifespan and stronger performance but also improves energy efficiency. The cordless design, powered by two 4.0Ah batteries, allows for extensive use without the constraints of a power cord, ideal for both indoor and outdoor projects.
Overview of the DongCheng Angle Grinder
The DongCheng Angle Grinder, retailing at $32.99, presents itself as a more budget-friendly option for users looking to tackle basic grinding and cutting tasks. With a powerful 6.7-Amp motor delivering speeds up to 11,800 RPM, it is designed for efficiency and effectiveness in various applications. Its lightweight design and ergonomic paddle switch enhance user comfort, making it suitable for extended use without the risk of accidental activation.
Performance Comparison
The AOBEN Cordless Angle Grinder boasts a maximum speed of 9,500 RPM, while the DongCheng model exceeds this with a top speed of 11,800 RPM. This gives the DongCheng grinder an edge in terms of raw power and speed, allowing for quicker completion of tasks. However, it’s important to note that the AOBEN offers a brushless motor, which can provide greater durability and less wear over time, though this is more relevant to long-term use rather than immediate performance.
Battery Life and Power Source
The AOBEN Cordless Angle Grinder relies on a dual battery system, providing a continuous power source without the constraints of a cord. This feature is particularly beneficial for outdoor work or in spaces where outlets are limited. In contrast, the DongCheng grinder is corded, which means it doesn’t require battery management but may limit mobility during use. With a price difference of about 142% ($79.99 for AOBEN vs. $32.99 for DongCheng), the user must consider whether the freedom of cordless operation is worth the higher investment.
User Safety Features
Safety is a key aspect of both products. The AOBEN grinder comes with two wheel guards for added protection during cutting operations, minimizing the risk of injury from flying debris. On the other hand, the DongCheng grinder features a no-lock paddle switch that stops immediately when released, which significantly enhances user safety by preventing accidental activation. The DongCheng model also includes dual guards for different applications, showcasing a thoughtful approach to safety and versatility.
Weight and Handling
The AOBEN Cordless Angle Grinder's compact and handy design is aimed at reducing user fatigue during extended operations, although specific weight data isn’t provided. The DongCheng grinder, weighing only 4.2 lbs, is designed for an extra-slim grip, which is claimed to reduce fatigue and vibration during use. This lightweight construction may appeal to casual users or those performing tasks over prolonged periods, making it an attractive option for beginners.
Included Accessories
The AOBEN Cordless Angle Grinder comes as a complete kit, including two batteries, a charger, various wheel guards, and multiple types of wheels for cutting, grinding, and sanding. This comprehensive package adds significant value for users seeking an all-in-one solution. Conversely, the DongCheng model also includes a variety of accessories, such as cutting discs and flap discs, but does not offer the same level of battery-powered flexibility. Users should consider which accessories are most beneficial for their specific tasks.
Which should you buy?
Deciding between the AOBEN Cordless Angle Grinder and the DongCheng Angle Grinder ultimately depends on your specific needs. If you prioritize mobility and a complete kit for diverse applications, the AOBEN at $79.99 may be worth the investment. However, if you’re looking for a budget-friendly option that delivers high performance for basic tasks, the DongCheng at $32.99 is a compelling choice. Each product offers unique advantages, making them suitable for different user preferences and project requirements.

