---
product_id: 255622688
title: "General Tools Internal Pipe Wrench #139/4 4 Piece Set, Hardened Steel Construction, Broken Pipe Extractor, Government-Compliant, 3/8-inch, ½-inch., ¾-inch and 1-inch Pipe Capacities"
brand: "general tools"
price: "฿3323"
currency: THB
in_stock: true
url: https://www.desertcart.co.th/products/255622688-general-tools-internal-pipe-wrench-139-4-4-piece-set
store_origin: TH
region: Thailand
---

# Fits 3/8" to 1" pipes Hardened steel, rust-resistant Cam action for secure grip General Tools Internal Pipe Wrench #139/4 4 Piece Set, Hardened Steel Construction, Broken Pipe Extractor, Government-Compliant, 3/8-inch, ½-inch., ¾-inch and 1-inch Pipe Capacities

**Brand:** general tools
**Price:** ฿3323
**Availability:** ✅ In Stock

## Summary

> 🔧 Break free from broken pipes with precision power!

## Quick Answers

- **What is this?** General Tools Internal Pipe Wrench #139/4 4 Piece Set, Hardened Steel Construction, Broken Pipe Extractor, Government-Compliant, 3/8-inch, ½-inch., ¾-inch and 1-inch Pipe Capacities by general tools
- **How much does it cost?** ฿3323 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/255622688-general-tools-internal-pipe-wrench-139-4-4-piece-set)

## Best For

- general tools enthusiasts

## Why This Product

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

## Key Features

- • **All-Size Coverage:** Four-piece set covers 3/8", 1/2", 3/4", and 1" pipe capacities
- • **Cam-Powered Extraction:** Heat-treated cams lock onto broken pipe fragments effortlessly
- • **Precision Grip, Zero Damage:** Removes broken pipes without scratching or denting surfaces
- • **Government-Grade Reliability:** Meets strict GGG-W643b specs for size and weight compliance
- • **Versatile Torque Compatibility:** Hex body fits open or adjustable wrenches for maximum leverage

## Overview

The General Tools Internal Pipe Wrench 4 Piece Set is engineered from hardened, rust-resistant steel to safely extract broken pipe ends and fittings without damaging threads or surfaces. Featuring heat-treated cams for a secure internal grip and a hex body compatible with open or adjustable wrenches, this government-compliant set covers pipe sizes from 3/8" to 1"—making it the essential tool for professionals demanding precision and durability.

## Description

General Tools Internal Pipe Wrench #139/4 4 Piece Set, Hardened Steel Construction, Broken Pipe Extractor, Government-Compliant, 3/8-inch, ½-inch., ¾-inch and 1-inch Pipe Capacities

## Features

- NO THREAD DAMAGE: Ideal for removing broken threaded pipe ends, plugs and fittings without marring, scratching or denting pipe surface or threads
- CAM ACTION: The machined and heat-treated cams easily grab on to broken pipe fragments lodged inside the other pipe
- USE WITH OPEN OR CLOSED-END WRENCHES: Hex body allows for use of adjustable wrench for added torque
- COMPLIANT: Meets government specifications GGG-W643b for size and weight
- HARDED STEEL CONSTRUCTION: Made from hardened steel and plated to help prevent rust.SPECIFICATIONS: For 3/8 in., 1/2 in., 3/4 in. and 1 in. pipe capacities

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | General Tools |
| Part number | 139/4 |
| Item Weight | 540 g |
| Product Dimensions | 19.38 x 15.88 x 3.18 cm; 539.77 g |
| Item model number | 139/4 |
| Size | Set of 4 |
| Color | Solid Black |
| Finish | Painted |
| Material | Alloy Steel |
| Power source type | Hand Powered |
| Item Package Quantity | 1 |
| Head Style | Hex |
| Included components | Four-piece Internal Pipe Wrench Set |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Colour:** Solid Black
- **Brand:** General Tools
- **Material:** Alloy Steel
- **Item length:** 3.75 Inches
- **Item weight:** 540 g

## Images

![General Tools Internal Pipe Wrench #139/4 4 Piece Set, Hardened Steel Construction, Broken Pipe Extractor, Government-Compliant, 3/8-inch, ½-inch., ¾-inch and 1-inch Pipe Capacities - Image 1](https://m.media-amazon.com/images/I/71rPhd-LryL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: how use internal pipe wrench?**
A: The Idea of a internal pipe wrench is not to mar the outside surface or the threaded areas. 90% of the time I use them to extract chrome plated pipe & rusted broken pipe nipples, especially in a shower wall.  Since the eccentric rotates either direction, it can be used for installing or uninstalling in a clean professional manner.

**Q: Can it both tighten and loosen the pipe nipples?**
A: Yes, it works in both directions. On a side note, I also use a small pipe wrench with these on extra tight nipples.

**Q: Can you use these with an impact gun? To retrieve a ferrell nut that has been rounded off inside an engine?**
A: I would say no since they rely on constant pressure to maintain contact with the inside of a smooth surface (pipe). Also the hammering effect of an impact gun would probably break the tool.

**Q: Does it work with PVC broken pipes?**
A: Eric--As a follow-up, I've learned that most circular or eccentric-style extractors won't work on PVC.  The problem is they have many mini edges to grip and hold the internal portion of this kind of pipe.  These tend to dull with use, however, and don't grip well.  They will also only make contact with a small portion of the inside diameter of the pipe, which further reduces your chances of success.  What will work, however, is an Irwin Hanson ST-7 (9/16") or larger Straight Screw Extractor.  These have a tapered, straight-sided profile with four sharp edges that will grip the pipe and twist it out.  They will also work in either direction, for right- or left-hand threads.  You turn these with a socket and ratchet, a tap handle or an adjustable wrench, depending on the space you have to work inAnother possibility is the Wheeler Rex 87050 Nipple Chuck for 1/2" pipe.  This tool is used by plumbers to remove broken threaded pieces in a wall shower when the galvanized shower pipe breaks off and leaves a stub behind in the wall. These work well as you twist the outer portion to expand inside the broken stub; three sections expand outward to lock the tool in place, then you twist it out with a wrench in reverse.  Very effective, as it distributes the force equally inside the broken stub. This last option is kind of pricey ($42.50 + shipping at this writing), so I'd try the Hanson ST-7 first.  I hope this helps.

## Frequently Bought Together

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-03-07*