---
product_id: 404270031
title: "ARM602-4A"
brand: "acdelco"
price: "S$154"
currency: SGD
in_stock: null
reviews_count: 9
url: https://www.desertcart.sg/products/404270031-arm602-4a
store_origin: SG
region: Singapore
---

# ±2% CW accuracy with ISO 6789 calibration Battery powered with 2 CR2032 included 33.9-339 Nm torque range ARM602-4A

**Brand:** acdelco
**Price:** S$154
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Torque Like a Pro, Every Time!

## Quick Answers

- **What is this?** ARM602-4A by acdelco
- **How much does it cost?** S$154 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/404270031-arm602-4a)

## Best For

- acdelco enthusiasts

## Why This Product

- Trusted acdelco brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Certified Confidence:** Comes with an ISO 6789 calibration certificate, guaranteeing trusted accuracy and peace of mind on every job.
- • **Real-Time Torque Feedback:** Stay in control with an easy-to-read LCD, buzzer alerts, and LED flash notifications when your target torque is reached.
- • **Precision at Your Fingertips:** Instantly convert any 1/2" ratchet into a high-accuracy digital torque wrench with ±2% calibration precision.
- • **Built to Last, Designed for Pros:** Heavy-duty industrial-grade materials ensure durability and reliability for years of professional use.
- • **Compact & Lightweight Powerhouse:** Weighing just 0.31 lbs and sized for tight spaces, it’s perfect for automotive, motorbike, and industrial applications.

## Overview

The ACDelco ARM602-4A is a heavy-duty 1/2" digital torque adapter offering a wide torque range of 33.9 to 339 Nm with ±2% accuracy. Featuring a clear LCD display, buzzer and LED alerts, and ISO 6789 calibration certification, it transforms any standard ratchet into a precision torque wrench. Lightweight and durable, it’s powered by included CR2032 batteries and built for professional-grade performance in automotive and industrial settings.

## Description

Shop ACDelco ARM602-4A 1/2" Heavy Duty Digital Torque Adapter (33.9-339 Nm) with Buzzer, LED Flash Notification, Protective Case & ISO 6789 Standard Calibration Certificate. Free delivery on eligible orders of £20 or more.

Review: Excellent - Works well. But read the instructions
Review: Accurate and easy to use - Excellent item, very well made and accurate. I was confused by previous review suggesting one side was 3/8. It is not, both ends are 1/2 as you would expect. Recommended.

## Features

- ACCURATE, SOLID & RELIABLE - Instantly upgrade and convert your ratchet wrench into a fully accurate and reliable precision adjustment tool torque wrench with stunningly accurate calibration. The ACDelco digital torque adaptor is a vital tool for any mechanic working on engine rebuilds to tyre fittings.
- EASY TO USE – Our lightweight, heavy duty, and professional (33.9 to 339Nm) digital torque adapter is engineered with high-quality materials that displays real-time torque values in ft-lbs. and Newton Metres. Excellent tool for tiny, tight, and narrow working environments, but also reliable torque values that is ideal for professionals, automotive, motor bikes, and many other industrial uses.
- SUPERIOR QUALITY – ACDelco is long known for its stellar quality and this tool is no different. Offering you speed, accuracy, and an easy to read LCD screen that beeps when your desired torque value is achieved. Our digital torque adapter is also highly efficient, with longer lifespan and industrial grade material engineered to last years or even decades to come with proper uses.
- PRODUCT SPECIFICATIONS - Drive: 1/2", Dimensions – H48 x W47 x L75mm, Accuracy: CW± 2%; CCW± 3%, Measured Torque Range: 33.9 – 339 Nm (25-250 ft-lbs), Resolution: 1 kg-cm, 0.1 N-m, 1 in-lb, 0.1 ft-lb, Auto Shut-Off: After 1 Minute of No Use, Tool Weight – 0.31 lbs (0.14kg). Includes - x1 Digital Torque Adapter, x1 ISO 6789 Calibration Certificate. x2 CR2032 Batteries.
- DIGITAL TORQUE - Our digital torque range offers a great range of torque adpaters and torque wrenches, making your life easier. Our adapters instantly convert you normal standard wrench into high precision adjustment tool with stunningly accurate calibration. Our torque wrenches have a built in LED screens that displays real-time torque values in ft-lbs. and Nm and beeps when a desired torque value is achieved. Each tool and adapters comes with a ISO 6789 Standard Certificate of Calibration.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09QKYMSDZ |
| Batteries | 2 CR2032 batteries required. (included) |
| Batteries Required? | Yes |
| Batteries included? | Yes |
| Battery Cell Type | Alkaline |
| Best Sellers Rank | 228,663 in DIY & Tools ( See Top 100 in DIY & Tools ) 316 in Torque Wrenches |
| Colour | Chromed |
| Customer Reviews | 4.3 4.3 out of 5 stars (53) |
| Date First Available | 17 Jan. 2022 |
| Finish | Polished |
| Head Style | Fixed Square |
| Item Package Quantity | 1 |
| Item Weight | 200 g |
| Item model number | ARM602-4A |
| Manufacturer | ACDelco Tools |
| Material | Metal, Plastic |
| Part Number | ARM602-4A |
| Power Source | Battery Powered |
| Product Dimensions | 4.3 x 4.4 x 7 cm; 200 g |
| Style | Digital |
| Torque | 339 Newton Meters |
| Voltage | 6 Volts |

## Product Details

- **Brand:** ACDelco
- **Colour:** Chromed
- **Item length:** 3 Inches
- **Item weight:** 200 Grams
- **Material:** Metal, Plastic

## Images

![ARM602-4A - Image 1](https://m.media-amazon.com/images/I/31mzpIliwVL.jpg)
![ARM602-4A - Image 2](https://m.media-amazon.com/images/I/41bXI8xfa5L.jpg)
![ARM602-4A - Image 3](https://m.media-amazon.com/images/I/41eaJKOTT2L.jpg)
![ARM602-4A - Image 4](https://m.media-amazon.com/images/I/41iVu7N-qVL.jpg)
![ARM602-4A - Image 5](https://m.media-amazon.com/images/I/41ka9VjKjQL.jpg)

## Questions & Answers

**Q: Does this show imperial torque readings?**
A: Yes. Foot Pounds @ Inch Pounds in addition to Metric readings.

**Q: Does the ARM602-4A have a 1/2 inch receiver?**
A: Yes. The ARM602-4A sits between the 1/2" wrench and the socket. You insert your 1/2" socket wrench into the top of the adaptor and attach a corresponding 1/2" socket to the base.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent
*by L***Y on 22 August 2024*

Works well. But read the instructions

### ⭐⭐⭐⭐⭐ Accurate and easy to use
*by F***E on 19 May 2024*

Excellent item, very well made and accurate. I was confused by previous review suggesting one side was 3/8. It is not, both ends are 1/2 as you would expect. Recommended.

### ⭐⭐⭐⭐ Works Well
*by D***E on 3 August 2024*

Does what it says on the tin. Takes a bit of playing with to work out how it actually works but I kind of got there in the end. Decent value but how long it will last I don’t know. Not as good as a decent full fat torque wrench but then again it’s at least half the price of a decent one, therefor 4 stars.

## Frequently Bought Together

- ACDelco ARM602-4A 1/2" Heavy Duty Digital Torque Adapter (33.9-339 Nm) with Buzzer, LED Flash Notification, Protective Case & ISO 6789 Standard Calibration Certificate
- ACDelco ARM601-3 Digital Torque Wrench 3/8" (5-50Nm) with Alarm and LED Flash Notification - ISO 6789 Standards with Calibration Certificate

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-01-26*