AOBEN 21V Cordless Impact Wrench, 400N.m Max vs CRAFTSMAN V20 RP Impact Wrench, Cordless,
Updated August 2026 — CRAFTSMAN V20 RP Impact Wrench, Cordless, leads on torque and features.
The AOBEN offers a budget-friendly option for light tasks, while the CRAFTSMAN excels in power and versatility for heavy-duty applications.
Why AOBEN 21V Cordless Impact Wrench, 400N.m Max is better
Price
AOBEN is significantly cheaper at $53.99.
Weight
AOBEN is designed to reduce fatigue during extended use.
Included Accessories
AOBEN comes with six driver sockets.
Why CRAFTSMAN V20 RP Impact Wrench, Cordless, is better
Torque
CRAFTSMAN has a maximum torque of 700 ft-lbs.
Motor Type
CRAFTSMAN features a brushless motor for better efficiency.
Speed Control
CRAFTSMAN offers three-speed settings for versatility.
Overall score
Specifications
| Spec | AOBEN 21V Cordless Impact Wrench, 400N.m Max | CRAFTSMAN V20 RP Impact Wrench, Cordless, |
|---|---|---|
| Max Torque | 400 N.m | 700 ft-lbs |
| Breakaway Torque | N/A | 1000 ft-lbs |
| Motor Type | Brushed | Brushless |
| Speed Settings | Variable | 3-Speed |
| Battery Type | Li-ion | Li-ion |
Dimension comparison
Price Comparison
The AOBEN 21V Cordless Impact Wrench is significantly cheaper than the CRAFTSMAN V20 RP Impact Wrench, making it an appealing option for budget-conscious buyers. Priced at $53.99, the AOBEN is about 70% less expensive than the CRAFTSMAN, which retails for $179.00. This notable price difference could influence those looking for a reliable impact wrench without a hefty investment. While the AOBEN is more affordable, the price might reflect the features and torque provided, which we'll explore in the following sections.
Torque and Power
When it comes to torque, the CRAFTSMAN V20 RP leads with impressive specifications. It boasts a maximum fastening torque of 700 ft-lbs and a breakaway torque of 1000 ft-lbs, suitable for heavy-duty applications. In contrast, the AOBEN offers a maximum torque of 400 N.m, which translates to approximately 295 ft-lbs. This significant difference in torque capabilities suggests that the CRAFTSMAN is better suited for tougher jobs, whereas the AOBEN caters more to light maintenance tasks and household needs.
Motor Type
The motor type plays a crucial role in the efficiency and performance of an impact wrench. The CRAFTSMAN features a brushless motor, designed to provide better runtime and efficiency compared to traditional brushed motors. The AOBEN, while powerful, does not specify a brushless design, which may affect its longevity and performance over time. The brushless technology in the CRAFTSMAN provides a clear advantage for users who require a tool that can handle extensive use without compromising on performance.
Speed and Control
The CRAFTSMAN offers more versatility with its three-speed settings and variable speed trigger, allowing users to adjust the speed according to their needs. This feature enhances precision when working on different tasks. The AOBEN, on the other hand, allows speed control through a single switch, meaning that the speed increases as the button is pressed. While it provides decent control, it may lack the fine-tuning capabilities offered by the CRAFTSMAN, making the latter more suitable for varying applications.
Battery and Charging
Battery technology is essential for cordless tools, and both impact wrenches come with their respective batteries. The AOBEN includes a 4.0Ah Li-ion battery that charges quickly and provides ample power for most household tasks. In contrast, the CRAFTSMAN also comes with a 4Ah battery, but the brushless motor combined with its battery efficiency is likely to provide longer runtime. The choice between the two may depend on how frequently you plan to use the tool and the intensity of the tasks at hand.
Design and Ergonomics
Both the AOBEN and CRAFTSMAN are designed with user comfort in mind, but they employ different strategies. The AOBEN features a lightweight design with a soft grip handle, reducing fatigue during extended use. This makes it a good option for those who may need to use the tool for longer periods. Conversely, the CRAFTSMAN emphasizes compactness and lightweight characteristics, making it easy to maneuver in tight spaces. While both tools are ergonomically designed, user preference for weight and feel will play a significant role in decision-making.
Versatility and Accessories
The AOBEN includes a set of six driver sockets, enhancing its versatility right out of the box. This feature makes the AOBEN a comprehensive package for users who need a variety of sizes for different tasks. On the other hand, the CRAFTSMAN, while not bundled with additional sockets, focuses on providing a powerful tool that can tackle a wide range of fastening applications due to its high torque capabilities. Depending on whether you value included accessories or raw power, your choice may vary.
Which should you buy?
In conclusion, the decision between the AOBEN 21V Cordless Impact Wrench and the CRAFTSMAN V20 RP Impact Wrench ultimately hinges on your specific needs. If you're looking for a more budget-friendly option for light to moderate tasks, the AOBEN is an excellent choice at $53.99. However, if you require a tool with superior torque, efficiency, and versatility for heavy-duty applications, the CRAFTSMAN at $179.00 is worth the investment. Each tool has its strengths, and understanding your requirements will guide you to the right decision for your projects.

