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AOBEN 21V Cordless Impact Wrench, 400N.m Max vs MZG Cordless Impact Wrench, 21V 406 Ft-lbs MAX Torque

Updated August 2026 — AOBEN 21V Cordless Impact Wrench, 400N.m Max wins on ergonomics and weight, MZG Cordless Impact Wrench, 21V 406 Ft-lbs MAX Torque wins on accessories and speed control.

The MZG Cordless Impact Wrench offers higher torque and more accessories, making it a better choice for demanding tasks, while the AOBEN excels in battery life.

Why AOBEN 21V Cordless Impact Wrench, 400N.m Max is better

Battery

AOBEN has a larger 4.0Ah battery.

Weight

AOBEN is designed to be lightweight.

Included Sockets

AOBEN includes 6 driver sockets.

Why MZG Cordless Impact Wrench, 21V 406 Ft-lbs MAX Torque is better

Torque

MZG has a maximum torque of 550 N.m.

Accessories

MZG includes 25 accessories.

Speed Control

MZG offers 3 variable speed settings.

Overall score

AOBEN 21V Cordless Impact Wrench, 400N.m Max
75
MZG Cordless Impact Wrench, 21V 406 Ft-lbs MAX Torque
82

Specifications

SpecAOBEN 21V Cordless Impact Wrench, 400N.m MaxMZG Cordless Impact Wrench, 21V 406 Ft-lbs MAX Torque
Max Torque400 N.m550 N.m
Max Speed3000 RPM2600 RPM
Battery Type4.0Ah Li-ion2.0Ah Li-ion
Included Accessories6 sockets25 accessories
Sales Rank4617852682

Dimension comparison

AOBEN 21V Cordless Impact Wrench, 400N.m MaxMZG Cordless Impact Wrench, 21V 406 Ft-lbs MAX Torque

Overview of the Products

The AOBEN 21V Cordless Impact Wrench is priced at $53.99, while the Cordless Impact Wrench by MZG is more budget-friendly at $38.99, making it about 28% cheaper. Despite the price difference, both tools offer unique features that cater to different user needs. AOBEN provides a powerful 400 N.m maximum torque and a robust battery capacity, while the MZG model boasts a higher torque rating of 550 N.m and additional accessories. These specifications indicate that while the AOBEN model is designed for general use, the MZG variant may be more suitable for demanding tasks.

Torque Performance

When comparing torque performance, the MZG Cordless Impact Wrench leads with a maximum torque of 550 N.m, compared to AOBEN's 400 N.m. This difference is significant, especially for users who require high torque for challenging tasks like removing stubborn bolts or car tires. The increased torque of the MZG model can enhance efficiency in heavy-duty applications, making it a preferred choice for professionals or serious DIY enthusiasts. Therefore, if torque is a primary consideration, the MZG model clearly outperforms the AOBEN wrench.

Speed and Control

Both impact wrenches feature impressive speed capabilities, but they differ in control options. The AOBEN model reaches a maximum speed of 3000 RPM, which is beneficial for quick jobs. In contrast, the MZG offers three variable speed settings (0-1500/2100/2600 RPM), providing users with the flexibility to choose the right speed for different tasks. This adaptability can be crucial for precision work and ensures that users can handle everything from tightening screws to removing bolts effectively. Overall, the MZG’s variable speed control gives it an edge in versatility.

Battery and Charging

AOBEN comes with a 4.0Ah Li-ion battery, which provides longer usage times without interruption, compared to MZG's 2.0Ah batteries. The AOBEN battery allows for extended periods of work, reducing downtime for recharging. However, the MZG includes two 2.0Ah batteries, enabling users to switch out batteries quickly for continuous work. This means that while AOBEN offers a single powerful battery, MZG provides the advantage of backup power. Users who prioritize longer work sessions without interruptions may prefer the AOBEN's larger battery capacity.

Included Accessories

The AOBEN model includes six driver sockets along with its wrench, making it a complete package for users who need immediate utility. In contrast, the MZG model comes with 25 accessories, which could include various bits and tools, adding substantial value for users looking to tackle a wide range of tasks. This difference in accessory count suggests that MZG may offer a more versatile toolset for those who require multiple attachments for different jobs. Therefore, if having a larger variety of accessories is important, MZG stands out in this category.

Build and Design

In terms of build and ergonomics, both models are designed for user comfort. The AOBEN wrench features a lightweight design and a soft grip handle, which helps reduce fatigue during extended use. The MZG model also includes a built-in LED work light, enhancing visibility in dark or cramped spaces. This feature is particularly beneficial for users working in low-light conditions. While both tools prioritize user comfort and usability, the inclusion of the LED light in the MZG model could make it more appealing for nighttime or dim environment operations.

Sales and Popularity

The AOBEN 21V Cordless Impact Wrench has a sales rank of 46,178, while the MZG model ranks slightly lower at 52,682. Although both models are relatively popular, AOBEN's higher rank may indicate a slightly better reception among consumers. This could be attributed to its established reputation in the market or specific features that resonate more with buyers. While sales rank is not the only indicator of quality, it can provide insight into consumer preferences and satisfaction levels.

Which should you buy?

Ultimately, the decision between the AOBEN 21V Cordless Impact Wrench and the MZG Cordless Impact Wrench hinges on individual needs and preferences. If you prioritize higher torque and a more extensive accessory set, the MZG model is the better option at $38.99. However, if long battery life and a powerful motor are critical to your tasks, the AOBEN model at $53.99 offers compelling advantages. Both tools have their strengths, making them suitable for different applications, so choose based on what features align best with your requirements.