Astro Pneumatic Tool 1822 ONYX 1/2" Nano Impact vs DEWALT ATOMIC 20V MAX* 1/2 in. Cordless Impact
Updated August 2026 — Astro Pneumatic Tool 1822 ONYX 1/2" Nano Impact wins on price and torque, DEWALT ATOMIC 20V MAX* 1/2 in. Cordless Impact wins on durability and versatility.
The Astro Pneumatic Tool offers superior torque and a lighter design, making it the better choice for high-performance tasks, while the DEWALT provides versatility and durability.
Why Astro Pneumatic Tool 1822 ONYX 1/2" Nano Impact is better
Torque
Astro delivers 500 ft-lbs vs DEWALT's 300 ft-lbs.
Weight
Astro weighs only 3.0 lbs, making it more portable.
Price
Astro is $111.99 compared to DEWALT's $219.99.
Why DEWALT ATOMIC 20V MAX* 1/2 in. Cordless Impact is better
Versatility
DEWALT has 4 speed settings vs Astro's 3.
Features
DEWALT includes an LED work light.
Durability
DEWALT's glass-filled nylon housing resists damage.
Overall score
Specifications
| Spec | Astro Pneumatic Tool 1822 ONYX 1/2" Nano Impact | DEWALT ATOMIC 20V MAX* 1/2 in. Cordless Impact |
|---|---|---|
| Max Torque | 500 ft-lbs | 300 ft-lbs |
| Weight | 3.0 lbs | N/A |
| Speed Settings | 3 | 4 |
| LED Light | No | Yes |
| Build Material | Aluminum | Nylon |
Dimension comparison
Overview of the Products
The Astro Pneumatic Tool 1822 ONYX 1/2" Nano Impact Wrench is priced at $111.99, while the DEWALT ATOMIC 20V MAX 1/2 in. Cordless Impact Wrench costs $219.99, making the Astro model about 49% cheaper. Despite the price difference, both tools cater to users looking for high-performance impact wrenches, though they serve slightly different needs and preferences.
Design and Build Quality
The Astro Pneumatic Tool 1822 features an extremely compact design, measuring less than 3-7/8" in length and weighing only 3.0 lbs. This lightweight construction enhances its maneuverability, especially in tight spaces. In contrast, the DEWALT ATOMIC model, while also designed for ease of use, has a robust yet slightly bulkier build, emphasizing durability with glass-filled nylon housing. This design helps it resist damage from oils and solvents, making it suitable for demanding environments.
Torque and Performance
When it comes to torque, the Astro Pneumatic Tool delivers a maximum of 500 ft-lbs, significantly outperforming the DEWALT model, which offers up to 300 ft-lbs of fastening torque. This difference of 200 ft-lbs may be crucial for users who require greater power for tougher jobs. The DEWALT does compensate with a breakaway torque of 450 ft-lbs, but for sheer fastening capability, the Astro Pneumatic tool leads the way.
Versatility in Use
The DEWALT ATOMIC offers enhanced versatility with four speed settings, allowing users to adapt the tool for various applications, including a timber screw mode for optimized speed in wood. Furthermore, it features a Precision Wrench control to prevent overtightening, which can be a major advantage in delicate tasks. The Astro Pneumatic, however, provides three forward and three reverse settings, making it versatile as well, though it lacks the finer control offered by the DEWALT model.
Operational Features
The Astro Pneumatic Tool's innovative twin hammer design contributes to its reliability and performance, making it an excellent choice for repetitive tasks. Additionally, it operates at 4.8 CFM with suggested Hi-Flo fittings, ensuring efficient air use. Meanwhile, the DEWALT model includes an onboard LED work light, enhancing visibility in dark workspaces—an essential feature for many users. While both tools have operational strengths, their features cater to slightly different preferences.
Weight and Portability
Weighing in at only 3.0 lbs, the Astro Pneumatic Tool is particularly suited for users who prioritize portability, especially in tight or complex jobs where maneuverability is essential. In comparison, the DEWALT ATOMIC is designed to be compact but may weigh slightly more due to its added features. For professionals who frequently move between sites or work in confined spaces, the lighter weight of the Astro Pneumatic tool may be a significant advantage.
Pricing and Value
With a price tag of $111.99, the Astro Pneumatic Tool is a more financially accessible option compared to the DEWALT ATOMIC, which retails for $219.99. This represents a cost difference of about $108, or 49%. Both products have their own value propositions: the Astro offers high torque and lightweight design, while the DEWALT emphasizes versatility and durability. The choice may ultimately depend on personal budget and specific use cases.
Which should you buy?
Choosing between the Astro Pneumatic Tool 1822 ONYX and the DEWALT ATOMIC 20V MAX hinges on your specific needs. If you require higher torque for demanding tasks and prefer a lightweight tool, the Astro Pneumatic is the clear winner at approximately $111.99. However, if you value versatility and features like multiple speed settings and an LED work light, the DEWALT ATOMIC, while more expensive at $219.99, may be worth the investment. Ultimately, consider your requirements, budget, and the environments in which you will be using the tools to make the best choice for your needs.

