---
product_id: 256608299
title: "ACDelco ARM303-4A-340 1/2” (12.5 to 250.7 ft-lbs.) Heavy Duty Digital Torque Wrench with Buzzer and LED Flash Notification – ISO 6789 Standards with Certificate of Calibration"
brand: "acdelco tools"
price: "R$4805"
currency: BRL
in_stock: true
url: https://www.desertcart.com.br/products/256608299-acdelco-arm303-4a-340-1-2-12-5-to-250
store_origin: BR
region: Brazil
---

# Real-time digital torque & multi-unit display Battery-powered with 2 AA slots 12.5-250.7 ft-lbs torque range ACDelco ARM303-4A-340 1/2” (12.5 to 250.7 ft-lbs.) Heavy Duty Digital Torque Wrench with Buzzer and LED Flash Notification – ISO 6789 Standards with Certificate of Calibration

**Brand:** acdelco tools
**Price:** R$4805
**Availability:** ✅ In Stock

## Summary

> 🔧 Torque Like a Pro, Work Like a Boss!

## Quick Answers

- **What is this?** ACDelco ARM303-4A-340 1/2” (12.5 to 250.7 ft-lbs.) Heavy Duty Digital Torque Wrench with Buzzer and LED Flash Notification – ISO 6789 Standards with Certificate of Calibration by acdelco tools
- **How much does it cost?** R$4805 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/256608299-acdelco-arm303-4a-340-1-2-12-5-to-250)

## Best For

- acdelco tools enthusiasts

## Why This Product

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

## Key Features

- • **Precision Meets Power:** Achieve exact torque from 12.5 to 250.7 ft-lbs with ±1.5% accuracy for flawless results every time.
- • **Versatile Multi-Unit Display:** Switch seamlessly between ft-lbs, N-m, Kg-cm, and in-lbs to suit any professional standard or preference.
- • **Durability That Lasts Decades:** Industrial-grade alloy steel body built to withstand heavy-duty use, backed by ISO 6789 calibration certification.
- • **Ergonomic & Lightweight Design:** Composite housing with soft grip handle reduces fatigue during long projects, perfect for tight spaces.
- • **Smart Alerts for Flawless Work:** Audible buzzer and LED flash notify you instantly when target torque is reached—never second guess your work.

## Overview

The ACDelco ARM303-4A-340 is a heavy-duty digital torque wrench engineered for professionals demanding precision and durability. Featuring a wide torque range of 12.5 to 250.7 ft-lbs, real-time multi-unit digital display, and smart buzzer plus LED alerts, it ensures accurate tightening in any environment. Its ergonomic, lightweight design minimizes fatigue, while industrial-grade alloy construction guarantees longevity. Certified to ISO 6789 standards and delivered with a protective case and calibration certificate, this tool is a must-have for automotive, industrial, and mechanical experts who refuse to compromise on quality.

## Description

The ACDelco Brand has been around well over 100 years and its name has become synonymous with quality & reliability. ACDelco power tools are built for people who make a living with their tools, day in and day out, and require exceptional sturdiness and reliability.   ACDelco offers the most complete line of digital torque wrenches and adapters for professionals who require high precision measurement on torque (ft-lbs./Nm/Kg-cm/in-lbs.) and angle degree for their job. Please use selection guides to choose the right digital torque wrench with right torque range for your application.FEATURESStatic torque measurementStandard functions: torque setting, measurement setting, mode settingOperation in both clockwise and counterclockwise directionsLCD display shows (Kg-cm, N-m, in-lbs., ft-lbs.) measurementsTorque Measurement Range]: 12.5 – 250.7 ft-lbs., Pre-set Accuracy CW +/- 1.5%, CCW +/- 2.5%.Digital torque: reversible, precision geared 72-tooth ratchet head measures torque in clockwise & counter-clockwise directions with anti-slip industrial grade grip design.Audible & visual alert system Specifications - Model Number: ARM303-4A-340 - Head Size: 1/2" - Torque Range: (12.5 to 250.7 ft-lbs.)  - Tool Weight: 6.6 lbs. (3.00 kg)  - Battery: 2 AA batteries (Not included)

## Features

- EASY TO USE Our lightweight, heavy duty, and professional (12.5 to 250.7 ft-lbs.) torque digital torque wrench is engineered with high-quality materials that displays real-time torque values, settings, battery level, measurement modes in (Kg-cm, N-m, in-lbs., and ft-lbs.). Excellent tool for tiny, tight, and narrow working environment, 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. It offers speed, accuracy, and an easy to read LCD screen that beeps when a desired torque value is achieved. Our digital torque wrench is also highly efficient, with longer lifespan and industrial grade alloy metal engineered to last years or even decades to come with proper uses.
- USER-FRIENDLY Lightweight composite housing and harden steel alloy body construction with ergonomic soft grip handle design provides comfort for long working hours and a secure grip for maximum control and steadiness. Slim body design molded to securely fit and balance hand torque to help reduce vibration and fatigue with less wear on your hands.
- VALUE KIT Our kit comes with a digital torque wrench, a manual of instructions and guidance, and a hard-shell case that protects and secures the tool once it is done using. This tool is powered by 2 AA batteries (not included).
- For over 35 years we have been manufacturing and providing the best products and services to our customers. We are confident that you will absolutely love our digital torque wrench that we will stand behind our product! you can buy with confidence!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Durofix, Inc. |
| Part number | ARM303-4A-340 |
| Item Weight | 10 g |
| Product Dimensions | 5.08 x 5.08 x 66.68 cm; 10 g |
| Batteries | 2 CR2 batteries required. |
| Item model number | ARM303-4A-340 |
| Size | 1/2" |
| Color | Black/Red |
| Style | Wrench |
| Finish | Polished |
| Material | Alloy Steel Aluminum |
| Power source type | Battery Powered |
| Voltage | 1.5 Volts |
| Torque | 250 Foot Pounds |
| Item Package Quantity | 1 |
| Head Style | Fixed Ratchet |
| Measurement System | Metric |
| Included components | Calibration Certification, Digital Torque Wrench, Metal Case, User Manual |
| Batteries Included? | No |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium Manganese Dioxide |

## Product Details

- **Colour:** Black/Red
- **Brand:** ACDelco Tools
- **Material:** Alloy Steel Aluminum
- **Item length:** 66.7 Centimeters
- **Item weight:** 0.01 Kilograms

## Images

![ACDelco ARM303-4A-340 1/2” (12.5 to 250.7 ft-lbs.) Heavy Duty Digital Torque Wrench with Buzzer and LED Flash Notification – ISO 6789 Standards with Certificate of Calibration - Image 1](https://m.media-amazon.com/images/I/514sKhSL0uL.jpg)

## Questions & Answers

**Q: Can you have a set torque of say 30 ftlbs and then have another saved setting of 70* at the same time?**
A: Yes you can

**Q: If it is shown that the torque readings are not correct, can the torque calibration be adjusted by the owner of the wrench? Or is it non-adjustable?**
A: I don’t think or I don’t know of a feature to calibrate the wrench. On a normal car it is 100lbs. And, it varies depending on make and vehicle. You will have to google it. But, 100lbs it is tight.

**Q: Does  this does angle measurement for engine head bolts  ??**
A: When you power it on, you need to leave it on a flat surface when you see 00000. It is calibrating the Angle accelerometer. If you keep moving it around, it will take forever to boot.

**Q: What size battery ?**
A: 2 AA batteries

## Frequently Bought Together

- ACDelco ARM303-4A-340 1/2" Heavy Duty Digital Torque Wrench with Buzzer and LED Flash Notification - ISO 6789 Standards with Certificate of Calibration
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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-01-28*