AOBEN 21V Cordless Impact Wrench, 400N.m Max vs DEWALT 20V MAX Cordless Impact Wrench, 1/2" Hog
Updated August 2026 — AOBEN 21V Cordless Impact Wrench, 400N.m Max wins on price and accessories, DEWALT 20V MAX Cordless Impact Wrench, 1/2" Hog wins on torque and speed.
The DEWALT 20V MAX Cordless Impact Wrench outperforms the AOBEN model in torque and features, making it the better choice for heavy-duty tasks.
Why AOBEN 21V Cordless Impact Wrench, 400N.m Max is better
Price
AOBEN is significantly cheaper at $53.99.
Weight
AOBEN is designed to be lightweight, reducing user fatigue.
Accessories
AOBEN includes six driver sockets in the package.
Why DEWALT 20V MAX Cordless Impact Wrench, 1/2" Hog is better
Torque
DEWALT offers 1320 ft-lbs of max fastening torque.
Speed Settings
DEWALT has three speed settings for better control.
LED Light
DEWALT includes an LED work light for visibility.
Overall score
Specifications
| Spec | AOBEN 21V Cordless Impact Wrench, 400N.m Max | DEWALT 20V MAX Cordless Impact Wrench, 1/2" Hog |
|---|---|---|
| Max Torque | 400 N.m | 1320 ft-lbs |
| Battery Type | 4.0Ah Li-ion | Battery sold separately |
| Speed Control | Variable | 3 settings |
| LED Light | No | Yes |
| Sales Rank | 46178 | 9752 |
Dimension comparison
Overview of the AOBEN 21V Cordless Impact Wrench and DEWALT 20V MAX Cordless Impact Wrench
The AOBEN 21V Cordless Impact Wrench is priced at $53.99, making it significantly more affordable than the DEWALT 20V MAX Cordless Impact Wrench, which is priced at $268.88. This price difference of about 80% may attract DIY enthusiasts or those needing a reliable tool for household tasks. Meanwhile, the DEWALT model, being a bit pricier, positions itself as a professional-grade tool designed for heavy-duty applications.
Torque and Performance
When it comes to torque, the DEWALT 20V MAX Cordless Impact Wrench significantly outperforms the AOBEN model. The DEWALT boasts a staggering 1320 ft-lbs of max fastening torque and 1900 ft-lbs of max breakaway torque, making it ideal for demanding tasks. In contrast, the AOBEN offers a maximum torque of 400 N.m, which, while sufficient for standard household jobs, may not suit more intensive applications. This difference highlights the DEWALT's suitability for professionals or serious DIY projects where high torque is essential.
Speed and Versatility
The DEWALT impact wrench features three speed settings and a precision wrench mode, allowing for greater versatility and control during use. This feature helps prevent overtightening and ensures that fasteners are properly secured. The AOBEN model provides variable speed control through its switch, enabling users to adjust the speed according to their needs. However, it lacks the advanced features found in the DEWALT, potentially limiting its versatility for complex tasks.
Battery and Charging
The AOBEN 21V Cordless Impact Wrench comes with a robust 4.0Ah Li-ion battery, which is designed to deliver extended usage without the worry of running out of power mid-task. It can be fully charged in a matter of hours, making it convenient for users who need to get work done quickly. On the other hand, the DEWALT model is sold as a bare tool, meaning the battery and charger are sold separately. While this allows for potential savings if you already own DEWALT batteries, it also means that you will need to invest additional funds to get it operational.
Weight and Ergonomics
Both impact wrenches are designed with user comfort in mind, but the AOBEN model prides itself on being lightweight, which can reduce user fatigue during prolonged use. It also features a soft grip handle for added comfort. The DEWALT impact wrench, while not specifically mentioned for weight, is built for durability and may be heavier due to its robust construction aimed at heavy-duty applications. Ergonomics are essential, especially for tasks that require extended periods of operation, and both brands have taken steps to ensure their tools are user-friendly.
Additional Features
The DEWALT 20V MAX Cordless Impact Wrench includes an LED work light, enhancing visibility in dimly lit areas and making it easier to complete tasks in various environments. This is particularly useful for professionals who often work in less-than-ideal conditions. The AOBEN model does not mention any such feature, which may limit its effectiveness in similar situations. Moreover, both tools come with a set of accessories, with the AOBEN including six driver sockets, which adds value for users who require a range of sizes for different applications.
Sales Rank and Market Position
The DEWALT 20V MAX Cordless Impact Wrench enjoys a better sales rank, sitting at 9752 compared to the AOBEN's rank of 46178. This suggests that the DEWALT model is more popular among consumers, likely due to its reputation for reliability and performance in professional settings. The AOBEN, while more affordable, might cater more to casual users or those new to power tools, indicating a different target market.
Which should you buy?
Choosing between the AOBEN 21V Cordless Impact Wrench and the DEWALT 20V MAX Cordless Impact Wrench ultimately depends on your specific needs. If you're a casual DIY enthusiast looking for an economical tool for light to moderate tasks, the AOBEN provides good value at $53.99. However, if you require a powerful, professional-grade tool capable of handling heavy-duty jobs, the DEWALT's advanced features and superior torque at $268.88 may justify the investment. The decision should be based on the intended use, budget, and the importance of advanced features in your work.

