---
product_id: 175888680
title: "US PRO Tools 1\" Drive x 40\" Long Power Breaker Knuckle Bar Torque 512Nm 4164"
brand: "us pro"
price: "837.83 DT"
currency: TND
in_stock: true
reviews_count: 7
url: https://www.desertcart.tn/products/175888680-us-pro-tools-1-drive-x-40-long-power-breaker
store_origin: TN
region: Tunisia
---

# 40-inch long leverage 512 Nm torque power Chrome Vanadium steel strength US PRO Tools 1" Drive x 40" Long Power Breaker Knuckle Bar Torque 512Nm 4164

**Brand:** us pro
**Price:** 837.83 DT
**Availability:** ✅ In Stock

## Summary

> 🛠️ Power up your toolkit with torque that means business!

## Quick Answers

- **What is this?** US PRO Tools 1" Drive x 40" Long Power Breaker Knuckle Bar Torque 512Nm 4164 by us pro
- **How much does it cost?** 837.83 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/175888680-us-pro-tools-1-drive-x-40-long-power-breaker)

## Best For

- us pro enthusiasts

## Why This Product

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

## Key Features

- • **Extended 40" Reach:** Provides superior leverage, reducing effort and increasing control on every job.
- • **Sleek Chrome Finish:** Combines professional aesthetics with corrosion resistance for a tool that looks as good as it performs.
- • **Unmatched Torque Power:** Delivers a massive 512 Nm for tackling the toughest bolts with ease.
- • **Precision Fixed Square Head:** Ensures a secure fit and maximum torque transfer without slipping.
- • **Premium Chrome Vanadium Steel:** Engineered for durability and long-lasting performance under heavy use.

## Overview

The US PRO Tools 1" Drive x 40" Power Breaker Knuckle Bar delivers a robust 512 Nm torque, crafted from durable chrome vanadium steel with a sleek chrome finish. Its 40-inch length offers exceptional leverage, while the fixed square head ensures precise, slip-free operation—perfect for professionals demanding strength and reliability.

## Description

US PRO Tools 1" Drive x 40" Long Power Breaker Knuckle Bar Torque 515Nm 4164Length: 40"1" drive so will fit any 1" drive sockets / extensions etc.Hardened and tempered chromium-vanadium steel for strength and durability and helps resist abrasion, oxidation, and corrosion with high chrome finish.SpecificationsLength: 39"Knuckle head: 1”Chrome VanadiumHeat treatedThis high quality Breaker Bar comes to you brand new with retail packaging/tagThis is a perfect addition / replacement to any toolbox or workshop

## Features

- 515 NM

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | US PRO |
| Part Number | 4164 |
| Item Weight | 4 kg |
| Manufacturer reference | 4164 |
| Colour | Chrome |
| Finish | Chrome Finish |
| Material | Chrome Vanadium Steel |
| Torque | 512 Newton Meters |
| Item Package Quantity | 1 |
| Head Style | Fixed Square |
| Item Weight | 4 kg |

## Product Details

- **Colour:** Chrome
- **Brand:** US PRO
- **Material:** Chrome Vanadium Steel
- **Item length:** 4E+1 Inches
- **Item weight:** 4004 Grams

## Images

![US PRO Tools 1" Drive x 40" Long Power Breaker Knuckle Bar Torque 512Nm 4164 - Image 1](https://m.media-amazon.com/images/I/21mU4LD73HL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Did The job very well
*by S***N on 12 November 2023*

I had a job on a van and it did it very well

### ⭐⭐⭐⭐⭐ Quality products budget price
*by K***. on 18 May 2023*

I have had quite a few Us pro tools and this one is my latest acquisition . They make good tools without the huge price , the quality is good and they seem to last .I have broken many tools in the past because I’m ham fisted but these seem to take the punishment well for a reasonable price . I am an occasional mechanic not professional by any means but buoy can pay a lot more for tools thanks these and they do the job well .

### ⭐⭐⭐⭐⭐ Should handle most things
*by R***N on 28 August 2020*

Garage overtightened wheel nuts on my car. Snapped a 1/2” breaker bar trying to undo them. This 1” bar overcame the problem with ease, although not without a huge amount of force. Car now has new set of studs all round as the old ones are probably unsafe.Have a tractor to strip down in a few weeks time and am expecting this to make short work of any high torqued nuts. Will follow through on this.

## Frequently Bought Together

- US PRO Tools 1" Drive x 40" Long Power Breaker Knuckle Bar Torque 512Nm 4164
- US PRO Tools 3 Piece 1" DR Impact Extension Bar Set Socket Bars 3423
- Trintion 10Pcs Impact Socket Set 1 Inch Metric Large Socket Set 22mm to 50mm Deep Wrench Sockets Drive Shaft Auto Car Tool Set with Plastic Storage Box for Vehicles Maintenance

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**Shop now:** [https://www.desertcart.tn/products/175888680-us-pro-tools-1-drive-x-40-long-power-breaker](https://www.desertcart.tn/products/175888680-us-pro-tools-1-drive-x-40-long-power-breaker)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-06-04*