AVID POWER Angle Grinder 4-1/ vs Dong Cheng DongCheng Angle Grinder 4-1/
Updated July 2026 — AVID POWER Angle Grinder 4-1/ wins on power and price, Dong Cheng DongCheng Angle Grinder 4-1/ wins on rpm.
The AVID POWER Angle Grinder offers more power and versatility, while the DongCheng model is a budget-friendly option with a lightweight design.
Why AVID POWER Angle Grinder 4-1/ is better
Power
AVID POWER has a higher motor output at 1000W.
Variable Speed
AVID POWER offers 7 variable speed settings.
Included Accessories
AVID POWER includes more accessories in the package.
Why Dong Cheng DongCheng Angle Grinder 4-1/ is better
Price
DongCheng is priced at $32.99, significantly cheaper.
Weight
DongCheng is lighter at 4.2 lbs.
RPM
DongCheng has a higher RPM at 11,800.
Overall score
Specifications
| Spec | AVID POWER Angle Grinder 4-1/ | Dong Cheng DongCheng Angle Grinder 4-1/ |
|---|---|---|
| Motor Power | 8.0 Amp | 6.7 Amp |
| Max RPM | 11500 | 11800 |
| Variable Speed | Yes | No |
| Paddle Switch | Lock-on | No Lock-on |
| Included Wheels | 4 | 6 |
Dimension comparison
Overview of the Products
In this comparison, we will examine the AVID POWER Angle Grinder and the DongCheng Angle Grinder. The AVID POWER model is priced at $56.99, while the DongCheng model is significantly cheaper at $32.99, making it about 42% less expensive. Both products are designed for cutting and grinding tasks, but they come with different features and specifications that cater to varying user needs.
Motor Power and Speed
The AVID POWER model features an 8.0 Amp motor with a power output of 1,000W, which allows it to reach speeds of up to 11,500 RPM. In contrast, the DongCheng model has a slightly lower power output of 6.7 Amps (800W) but can still reach a high speed of 11,800 RPM. While the AVID POWER grinder has a more robust motor, the DongCheng's slightly higher RPM may appeal to users seeking speed over raw power.
Variable Speed vs. Fixed Speed
One of the key differentiators is the AVID POWER's 7 variable speed settings, which allow users to adjust the speed according to their specific cutting and grinding needs. This flexibility can enhance performance in various applications. The DongCheng model, on the other hand, does not offer variable speed options but features a no-lock paddle switch for instant speed control, providing safety and ease of use. This means that while the AVID POWER is adaptable, the DongCheng model prioritizes user safety during extended use.
Safety Features
Safety is a significant concern with power tools, and both models have distinct safety features. The AVID POWER grinder comes with a wheel guard to protect against flying sparks and debris, and its paddle switch has a lock-on button to reduce user fatigue during prolonged use. The DongCheng model features a dual guard system that includes interchangeable guards for different tasks, allowing for safer and more precise work. Its paddle switch stops the motor instantly when released, preventing accidental activation. This focus on safety in both models mitigates potential risks associated with angle grinders.
Design and Ergonomics
In terms of design, the AVID POWER grinder is equipped with a non-slip rubber grip that minimizes vibration and enhances comfort during use. Its extended body design improves safety by keeping the cutting wheel further from the user. The DongCheng model, weighing only 4.2 lbs, is designed for ergonomics, featuring an extra-slim grip that fits comfortably in the hand, reducing fatigue during prolonged tasks. Both models emphasize user comfort, but the AVID POWER might be better suited for those who want a sturdier feel while working.
Included Accessories
The AVID POWER Angle Grinder comes with a comprehensive package, including two cutting wheels, two metal grinding wheels, a lock nut wrench, a side handle, and a pair of carbon brushes. This assortment provides users with everything needed to get started right away. Similarly, the DongCheng grinder includes two cutting discs, two grinding wheels, two flap discs, and various other accessories, making it equally well-equipped for various applications. Both models offer good value through their included accessories, ensuring users can start working immediately.
Performance on the Job
When it comes to performance, the AVID POWER grinder is designed for various cutting and grinding tasks with its robust motor and variable speed capabilities. This versatility makes it suitable for both professional and DIY projects. The DongCheng model excels in speed and ergonomics, making it a solid choice for users looking for a lightweight tool that can handle multiple applications efficiently. While both products perform well, the choice may depend on whether users prioritize power and adaptability (AVID POWER) or speed and ease of use (DongCheng).
Which should you buy?
When deciding between the AVID POWER Angle Grinder and the DongCheng Angle Grinder, consider your specific needs and preferences. The AVID POWER model, priced at $56.99, offers more power and variable speed options, making it ideal for diverse tasks and demanding projects. On the other hand, the DongCheng model, at just $32.99, is about 42% cheaper and features an ergonomic design and faster RPM, which may appeal to users who prioritize comfort and speed. Ultimately, if you require a powerful, versatile grinder, the AVID POWER may be the better option. However, for those on a budget or seeking a lightweight tool for occasional use, the DongCheng grinder is a compelling choice.

