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Astro Pneumatic Tool 1822 ONYX 1/2" Nano Impact vs DEWALT ATOMIC 20V MAX* 3/8 in. Cordless Impact

Updated August 2026 — Astro Pneumatic Tool 1822 ONYX 1/2" Nano Impact wins on torque and price, DEWALT ATOMIC 20V MAX* 3/8 in. Cordless Impact wins on speed and control.

The Astro Pneumatic Tool offers superior torque and a lower price, while the DEWALT provides versatility and advanced features.

Why Astro Pneumatic Tool 1822 ONYX 1/2" Nano Impact is better

Torque

Astro delivers 500 ft-lbs vs DEWALT's 300 ft-lbs

Price

Astro is $111.99 compared to DEWALT's $142.99

Weight

Astro weighs only 3.0 lbs, making it lighter

Why DEWALT ATOMIC 20V MAX* 3/8 in. Cordless Impact is better

Speed Settings

DEWALT has 4 speed settings vs Astro's 3

LED Light

DEWALT includes an onboard LED for visibility

Build Quality

DEWALT features durable glass-filled nylon housing

Overall score

Astro Pneumatic Tool 1822 ONYX 1/2" Nano Impact
85
DEWALT ATOMIC 20V MAX* 3/8 in. Cordless Impact
75

Specifications

SpecAstro Pneumatic Tool 1822 ONYX 1/2" Nano ImpactDEWALT ATOMIC 20V MAX* 3/8 in. Cordless Impact
Max Torque500 ft-lbs300 ft-lbs
Weight3.0 lbs3.5 lbs
Speed Settings34
LED LightNoYes
Price$111.99$142.99

Dimension comparison

Astro Pneumatic Tool 1822 ONYX 1/2" Nano ImpactDEWALT ATOMIC 20V MAX* 3/8 in. Cordless Impact

Overview of the Impact Wrenches

When comparing the Astro Pneumatic Tool 1822 ONYX 1/2" Nano Impact Wrench and the DEWALT ATOMIC 20V MAX* 3/8 in. Cordless Impact Wrench, both tools exhibit unique strengths tailored to different user needs. The Astro Pneumatic Tool is designed for maximum torque and compactness, while the DEWALT model offers versatility and advanced features for various applications.

Design and Build Quality

The Astro Pneumatic Tool 1822 ONYX boasts an extremely short profile, measuring less than 3-7/8" in length, making it one of the most compact impact wrenches available. Weighing only 3.0 lbs, it’s designed for easy handling without compromising on power. Conversely, the DEWALT ATOMIC 20V features a robust design with glass-filled nylon housing, providing durability against damage from oils and solvents. While the Astro is lighter and more compact, the DEWALT's construction is aimed at longer life and resilience.

Torque and Performance

The Astro Pneumatic Tool delivers an impressive 500 ft-lbs of maximum torque, making it the more powerful option for heavy-duty tasks. In contrast, the DEWALT ATOMIC offers up to 300 ft-lbs of maximum fastening torque, which is sufficient for a variety of fastening projects but falls short of the Astro’s capability. The significant difference in torque (about 67% more with the Astro) makes it clear that the Astro is better suited for challenging jobs requiring higher power.

Speed Settings and Control

When it comes to usability, the DEWALT ATOMIC provides enhanced user control with its four speed settings, including a Precision Wrench control feature designed to prevent overtightening. The Astro Pneumatic Tool, on the other hand, offers three forward and reverse settings, which are effective but not as versatile as the DEWALT's options. For users who require precise control in various applications, the DEWALT might be the more appealing choice despite the Astro's higher torque.

Features and Functionality

The DEWALT ATOMIC stands out with its onboard LED light, which enhances visibility in dark workspaces, a feature not present in the Astro Pneumatic Tool. Additionally, the DEWALT includes a hog ring anvil for quick and secure socket changes, facilitating efficiency during use. The Astro focuses more on raw power and compactness, which may appeal to those needing a lightweight option for tight spaces, but it lacks some of the functional enhancements that the DEWALT offers.

Pricing and Value

In terms of cost, the Astro Pneumatic Tool is priced at $111.99, while the DEWALT ATOMIC retails for $142.99. This makes the Astro approximately 17% cheaper than the DEWALT. Given the significant price difference, the Astro could be a more attractive option for users seeking high torque without breaking the bank, particularly for those who prioritize raw power over additional features.

Sales Performance and Market Position

The Astro Pneumatic Tool holds a sales rank of 44,761, while the DEWALT ATOMIC ranks significantly higher at 11,246. This indicates that the DEWALT is a more popular choice among consumers, likely due to its enhanced features and versatility. The Astro's lower sales rank may suggest a more niche market appeal, focusing on those who prioritize compact size and high torque.

Which should you buy?

Choosing between the Astro Pneumatic Tool 1822 ONYX and the DEWALT ATOMIC 20V MAX* ultimately depends on your specific needs. If you require a lightweight impact wrench with exceptional torque for heavy-duty tasks, the Astro is the better option at a lower price point. However, if you seek versatility, user-friendly features, and the ability to work in dark environments, the DEWALT may be worth the higher investment. Each tool has its merits, catering to different preferences and work demands.