---
product_id: 127988361
title: "Astro Pneumatic Tool 1838 ONYX 3/8\" Nano Angle Impact Wrench - 415ft/lb"
brand: "ap astro pneumatic tool company"
price: "AR$526871"
currency: ARS
in_stock: true
reviews_count: 13
category: "Ap Astro Pneumatic Tool Company"
url: https://www.desertcart.com.ar/products/127988361-astro-pneumatic-tool-1838-onyx-3-8-nano-angle-impact
store_origin: AR
region: Argentina
---

# 3.46" ultra-compact length 2.8 lbs lightweight design 415 ft/lbs max torque Astro Pneumatic Tool 1838 ONYX 3/8" Nano Angle Impact Wrench - 415ft/lb

**Brand:** ap astro pneumatic tool company
**Price:** AR$526871
**Availability:** ✅ In Stock

## Summary

> ⚡ Compact power that fits where others can’t — get the ONYX edge!

## Quick Answers

- **What is this?** Astro Pneumatic Tool 1838 ONYX 3/8" Nano Angle Impact Wrench - 415ft/lb by ap astro pneumatic tool company
- **How much does it cost?** AR$526871 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/127988361-astro-pneumatic-tool-1838-onyx-3-8-nano-angle-impact)

## Best For

- ap astro pneumatic tool company enthusiasts

## Why This Product

- Trusted ap astro pneumatic tool company brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Power-Packed Torque:** Unleash 415 ft/lbs of max torque to conquer the toughest bolts with ease.
- • **Featherweight Champion:** Weighing only 2.8 lbs, it delivers power without the bulk or fatigue.
- • **Pocket-Sized Precision:** At just 3.46 inches long, it slips into the tightest spots others can’t reach.
- • **360° Swivel Air Muffler:** Experience ultimate maneuverability and noise control on every job.
- • **3-Speed Forward/Reverse Control:** Fine-tune your torque with versatile speed settings to avoid over-tightening.

## Overview

The Astro Pneumatic 1838 ONYX 3/8" Nano Angle Impact Wrench is a professional-grade pneumatic tool delivering a massive 415 ft/lbs of torque in an ultra-compact 3.46" length. Weighing just 2.8 lbs, it’s engineered for precision in tight spaces with a durable aluminum housing, 360° swivel air exhaust, and 3-speed forward/reverse control. Trusted by pros for outperforming competitors at a fraction of the cost, it’s the ultimate blend of power, portability, and control.

## Description

The Astro 1838 ONYX 3/8" Nano Angle Impact Wrench boasts 415 ft/lbs. of max torque at 3.46” long making it shorter than a credit card. The 1838 The shortest 3/8” straight right angle impact wrench out in the market as well as designed to be extremely light weight (2.8lbs) and well balanced when connected with air. Specifications: square Drive: 3/8", handle type: Straight right angle, clutch type: oversized hammer, motor housing: aluminum w/ bed liner finish, air exhaust: 360° swivel air muffler, air inlet Thread: 1/4" Npt, switch: 3-speeds in both F and R, Max torque: 415 ft/lbs, Working Torque: 300 ft/lbs, Weight: 2.78 lbs, length(from end to end): 3.46", height(from end to end): 10.4", free speed: 9000 r.P.M. Noise level(sound pressure): 85 dB, average air consumption: 4.2 CFM, Min. Hose Size: 3/8".

Review: Much Better than CP and IR, much less expensive. - I bought the 3/8 inch drive ONYX 1838 Astro first... then I bought the 1/2 inch drive 1832 Astro, the 1/2 inch Thor 1894 impact wrench, the Astro 222 angle and straight die grinders and the Astro 208 3" cut off tool. Have all of these types of tools; but, the ONYX brand is much better than the CP and IR tools for torque and basic functionality. The price was very reasonable for all of these tools, much less money for a much better air tool. I retired some of my older CP and IR impacts and die grinders and I am very happy with the ONYX brand. I had to grind away the recessed pocket in the die grinders for the handles... kept biting my fingers when I squeezed the lever; but, the die grinders and angle cut-off are quiet and very powerful. I have an IR, Air Cat and Earthquake 1/2 inch drive impacts that I have no need of now... the Thor is so much better for removing wheel lugs and such, lots of torque and power. I have a lot of all sorts of pneumatic tools, I am now sold on the ONYX brand. The little angled 1832 1/2 inch and the 1838 3/8 inch impact wrenches are very unique, they are not a pneumatic ratchet wrench, they will both take off wheel lugs as well as some of my big IR and CPs do. I did not think I needed any new pneumatic tools; but, after the purchase of the little 3/8 inch 1838 I realized I was not using the best. I use them constantly... may as well have the best and the price of all of them was very reasonable.
Review: 10/10 would recommend - I love this little thing I mostly work with suspension on cars and it can go into really crammed spots where the other impacts can’t get I like How easy the trigger is to control has multiple modes r1-3 f1-3 so you dont snap or over torque nuts and bolts compared to the one from harbor freight that has none of that and is slightly bigger and more expensive. I was hesitant buying power tools from desertcart but I definitely will from this brand in the future.

## Features

- Product Type :Tools
- Package Dimensions :12.81" L X5.13" W X3.75" H
- Country Of Origin :China
- Package Weight :4.2Lbs

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01JBLA332 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #403,474 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #640 in Power Impact Wrenches |
| Brand | AP Astro Pneumatic Tool Company |
| Color | Black |
| Customer Reviews | 4.7 4.7 out of 5 stars (609) |
| Date First Available | February 19, 2019 |
| Finish | Painted, Polished |
| Finish Type | Painted, Polished |
| Global Trade Identification Number | 00745227065455 |
| Head Style | Round |
| Included Components | ONYX 3/8" Nano Angle Impact Wrench - 415ft/lb |
| Item Length | 3.46 Inches |
| Item Package Quantity | 1 |
| Item Torque | 415 Foot Pounds |
| Item Weight | 3.2 pounds |
| Item model number | 1838 |
| Manufacturer | Astro Pneumatic Tool |
| Material | Aluminium |
| Measurement System | Metric |
| Operation Mode | Pneumatic |
| Part Number | 1838 |
| Size | 3/8" |
| Style | Wrench |
| UPC | 745227065455 |

## Product Details

- **Brand:** AP Astro Pneumatic Tool Company
- **Color:** Black
- **Item Length:** 3.46 Inches
- **Item Weight:** 3.2 Pounds
- **Material:** Aluminium

## Images

![Astro Pneumatic Tool 1838 ONYX 3/8" Nano Angle Impact Wrench - 415ft/lb - Image 1](https://m.media-amazon.com/images/I/61wLoaIkuLL.jpg)

## Questions & Answers

**Q: Can torque be adjusted on this by reducing air or have adjustments on it**
A: Nope, it’s an air tool, but I use torque controlled deep sockets to control the torque. There’s also short sockets that are torque control but not regular short sockets, most nuts requiring torque need the space for the torque to be applied.

**Q: How do you connect the airline? The inlet on the tool has a cover that only spins and doesn't seem like it comes off.**
A: I assume u mean the black plastic plug that's installed at factory to keep debris out,pop that out and screw in correct air connector plug for coupler size u use, and always use pneumatic tool oil on first  use to help prolong life of tool

**Q: What's the smallest compressor needed**
A: It probably would work fine with a10-15 gal as long as it's intermittent use as with any impact long use needs the air behind it.I run 60 gal 230 v and it works great ,but I'm sure smaller compressor would do fine. .it's a excellent tool I really like it. Very powerful especially for the diy'er

**Q: is max torque the same for both sizes?**
A: The torque is the same but 1/2 inch gun work better on bolts

## Customer Reviews

### ⭐⭐⭐⭐⭐ Much Better than CP and IR, much less expensive.
*by A***E on May 30, 2023*

I bought the 3/8 inch drive ONYX 1838 Astro first... then I bought the 1/2 inch drive 1832 Astro, the 1/2 inch Thor 1894 impact wrench, the Astro 222 angle and straight die grinders and the Astro 208 3" cut off tool. Have all of these types of tools; but, the ONYX brand is much better than the CP and IR tools for torque and basic functionality. The price was very reasonable for all of these tools, much less money for a much better air tool. I retired some of my older CP and IR impacts and die grinders and I am very happy with the ONYX brand. I had to grind away the recessed pocket in the die grinders for the handles... kept biting my fingers when I squeezed the lever; but, the die grinders and angle cut-off are quiet and very powerful. I have an IR, Air Cat and Earthquake 1/2 inch drive impacts that I have no need of now... the Thor is so much better for removing wheel lugs and such, lots of torque and power. I have a lot of all sorts of pneumatic tools, I am now sold on the ONYX brand. The little angled 1832 1/2 inch and the 1838 3/8 inch impact wrenches are very unique, they are not a pneumatic ratchet wrench, they will both take off wheel lugs as well as some of my big IR and CPs do. I did not think I needed any new pneumatic tools; but, after the purchase of the little 3/8 inch 1838 I realized I was not using the best. I use them constantly... may as well have the best and the price of all of them was very reasonable.

### ⭐⭐⭐⭐⭐ 10/10 would recommend
*by G***N on October 14, 2025*

I love this little thing I mostly work with suspension on cars and it can go into really crammed spots where the other impacts can’t get I like How easy the trigger is to control has multiple modes r1-3 f1-3 so you dont snap or over torque nuts and bolts compared to the one from harbor freight that has none of that and is slightly bigger and more expensive. I was hesitant buying power tools from Amazon but I definitely will from this brand in the future.

### ⭐⭐⭐⭐⭐ Powerful and Well Designed
*by G***8 on July 26, 2021*

Astro Pneumatics Angle Impact Wrench Very impressive pneumatic impact wrench. Got it from Amazon yesterday and had to try it out today. Hooked it up to my 10 lb CO2 bottle with inlet pressure regulated to 120 PSI and can flow up to 45CMF!! This is one smooth impact wrench. The trigger is progressive and allows the air to be throttled going into the wrench so you can modulate the speed. Some other impact guns are either full on or off and nothing in between. This is not the case for the Astro Pneumatics impact wrench. The build quality is absolute 1st class. This is a professional grade tool. The impact wrench has both Forward and Reverse direction settings. Within each setting, there are three positions to regulate the amount of force the wrench puts out. This way, you can tighten to a certain point and then finish off the final torque with a torque wrench! Very nice!! The three positions for the selector switch has detents so you can tell exactly what position it is in. The detent tactile feedback are subtle but it is there. The opening for the air exhaust can be rotated so it doesn't blow directly into your face. While I have not had the chance to test the 415 FT-LBS torque setting, I'm pretty sure it has the capability. Folks who say impact wrenches that don't meet up to the torque spec probably do not have sufficient volume of air flow - CFM. This will not make the tool work properly. I have another impact wrench and ran into this exact problem using a small home style air compressor. It didn't have enough air VOLUME and struggled to remove wheel lug nuts at 100 ft-lbs! This is not the fault of the impact wrench - make sure your air supply has plenty of air VOLUME!

## Frequently Bought Together

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-03-06*