Astro Pneumatic Tool 1822 ONYX 1/2" Nano Impact vs CRAFTSMAN V20 RP Impact Wrench, Cordless,
Updated August 2026 — Astro Pneumatic Tool 1822 ONYX 1/2" Nano Impact wins on weight, CRAFTSMAN V20 RP Impact Wrench, Cordless, wins on battery included and led light.
The CRAFTSMAN V20 RP offers more power and versatility, making it the better choice for heavy-duty tasks, while the Astro Pneumatic Tool is more portable and budget-friendly.
Why Astro Pneumatic Tool 1822 ONYX 1/2" Nano Impact is better
Price
Astro Pneumatic Tool is $111.99, significantly cheaper than CRAFTSMAN's $179.00.
Weight
Astro Pneumatic Tool weighs only 3.0 lbs, making it easier to handle.
Compact Size
Astro Pneumatic Tool measures just 3.85 inches in length.
Why CRAFTSMAN V20 RP Impact Wrench, Cordless, is better
Torque
CRAFTSMAN offers 700 ft-lbs of max tightening torque.
Battery
CRAFTSMAN includes a 4Ah battery and charger for convenience.
Motor Type
CRAFTSMAN features a brushless motor for better efficiency.
Overall score
Specifications
| Spec | Astro Pneumatic Tool 1822 ONYX 1/2" Nano Impact | CRAFTSMAN V20 RP Impact Wrench, Cordless, |
|---|---|---|
| Max Torque | 500 ft-lbs | 700 ft-lbs |
| Breakaway Torque | N/A | 1000 ft-lbs |
| Motor Type | High Performance | Brushless |
| Power Source | Air | Cordless |
| Speed Control | 3 Forward/Reverse | 3-Speed + Variable |
Dimension comparison
Overview of the Astro Pneumatic Tool 1822 ONYX vs CRAFTSMAN V20 RP Impact Wrench
The Astro Pneumatic Tool 1822 ONYX is priced at $111.99, while the CRAFTSMAN V20 RP Impact Wrench comes in at $179.00, making the Astro option about 37% cheaper. Both impact wrenches serve distinct purposes and target different user preferences. The Astro Pneumatic Tool is a lightweight air-powered tool, whereas the CRAFTSMAN is a cordless option, which makes it appealing for those who prefer mobility and convenience.
Design and Build Quality
When it comes to design, the Astro Pneumatic Tool 1822 ONYX is engineered for extreme portability, measuring just 3.85 inches in length and weighing only 3.0 lbs. This compact design allows it to fit into tight spaces, making it ideal for automotive work. In contrast, the CRAFTSMAN V20 RP Impact Wrench is ergonomically designed for comfort and ease of use, but it does not provide specific weight details. The glass-filled nylon housing adds durability, making it suitable for various environments.
Power and Performance
The CRAFTSMAN V20 RP boasts an impressive 700 ft-lbs of max tightening torque and 1000 ft-lbs of breakaway torque, making it a powerful contender in heavy-duty applications. The Astro Pneumatic Tool 1822 ONYX, while not as powerful, still offers a respectable 500 ft-lbs of max torque. This difference in torque capacity suggests that the CRAFTSMAN may be more suited for demanding tasks, whereas the Astro model excels in lighter, more precise applications.
Motor and Efficiency
The CRAFTSMAN V20 RP features a brushless motor, which is known for enhancing runtime and efficiency, making it a great choice for prolonged use. On the other hand, the Astro Pneumatic Tool utilizes a high-performance motor that supports its significantly lighter design. While the Astro tool's motor is designed for quick bursts of power in a compact package, users looking for sustained high torque might find the CRAFTSMAN more efficient overall.
Versatility and Features
The CRAFTSMAN V20 RP includes three-speed settings and a variable speed trigger, allowing users to adjust torque depending on the application. This feature enhances its versatility for various tasks. The Astro Pneumatic Tool 1822 ONYX, while lacking variable speed settings, offers three forward and three reverse settings, which can be beneficial for specific tasks but may not provide the same level of control as its competitor.
Battery and Power Source
The CRAFTSMAN V20 RP is a cordless model that comes with a 4Ah battery and a charger included, providing users with the convenience of portability without being tethered to a power source. In contrast, the Astro Pneumatic Tool requires an air compressor, which may limit its usability in locations where compressed air is not readily available. For users who prioritize mobility and ease of use, the CRAFTSMAN is clearly the more advantageous option.
Price Comparison
The Astro Pneumatic Tool 1822 ONYX is currently listed at $111.99, while the CRAFTSMAN V20 RP is priced at $179.00. This makes the CRAFTSMAN about 60% more expensive than the Astro model. While price is an important factor, potential buyers should consider the application and frequency of use. If you need a tool for occasional tasks, the Astro may be the more budget-friendly choice. However, for those who require a robust, versatile tool for regular heavy-duty use, the CRAFTSMAN might justify the higher price.
Which should you buy?
In summary, the choice between the Astro Pneumatic Tool 1822 ONYX and the CRAFTSMAN V20 RP Impact Wrench boils down to your specific needs. If you value portability, compactness, and a lower price point, the Astro Pneumatic Tool is an excellent choice. However, if maximum torque, battery convenience, and versatility are your priorities, the CRAFTSMAN V20 RP is more suited to those demands. Ultimately, your decision should reflect how you intend to use the tool and the environment in which you'll be working.

