---
product_id: 321357707
title: "Keyfit Tools Big Bertha Breacher Stubby Large 1 Inch I.D. Breaker Bar Wrench Extender Works on Ratchets Pliers Wrenches Up to 4 Feet of Nut Busting Power No More Makeshift Cheater Bars/Pipes"
brand: "keyfit tools"
price: "S/.450"
currency: PEN
in_stock: true
reviews_count: 5
url: https://www.desertcart.pe/products/321357707-keyfit-tools-big-bertha-breacher-stubby-large-1-inch-i
store_origin: PE
region: Peru
---

# 4 feet of power 5" compact length 1" inner diameter Keyfit Tools Big Bertha Breacher Stubby Large 1 Inch I.D. Breaker Bar Wrench Extender Works on Ratchets Pliers Wrenches Up to 4 Feet of Nut Busting Power No More Makeshift Cheater Bars/Pipes

**Brand:** keyfit tools
**Price:** S/.450
**Availability:** ✅ In Stock

## Summary

> 🔨 Break the Limits with Big Bertha!

## Quick Answers

- **What is this?** Keyfit Tools Big Bertha Breacher Stubby Large 1 Inch I.D. Breaker Bar Wrench Extender Works on Ratchets Pliers Wrenches Up to 4 Feet of Nut Busting Power No More Makeshift Cheater Bars/Pipes by keyfit tools
- **How much does it cost?** S/.450 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/321357707-keyfit-tools-big-bertha-breacher-stubby-large-1-inch-i)

## Best For

- keyfit tools enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Crafted from professional-grade Cr-V steel, guaranteed for life.
- • **Compact Design:** At just 5 inches, it’s the perfect space-saving solution for your tool collection.
- • **Ratcheting Angles:** Adjustable leverage angles for maximum efficiency on stubborn nuts and bolts.
- • **Unleash the Power:** Experience up to 4 feet of nut-busting torque with this ultra-compact tool.
- • **Versatile Compatibility:** Fits most open-end wrenches, making it a must-have for any toolbox.

## Overview

The Keyfit Tools Big Bertha Breacher Stubby is a 5-inch wrench extender designed to provide up to 4 feet of leverage for breaking loose stubborn nuts and bolts. Made from durable chrome vanadium steel, this tool is compatible with most open-end wrenches and is guaranteed for life, making it an essential addition to any professional or DIY toolbox.

## Description

Keyfit Tools Big Bertha Breacher Stubby Large 1 Inch I.D. Breaker Bar Wrench Extender Works on Ratchets Pliers Wrenches Up to 4 Feet of Nut Busting Power No More Makeshift Cheater Bars/Pipes

## Features

- Ultra Compact 5" length wrench extender MUST use a breaker bar or ratchet for up to 4 feet of length Large 1" inner diameter OTHER TOOLS NOT INCLUDED
- Versatile ratcheting angles of leverage and IT ALL FITS IN YOUR TOOL BOX
- Slot accommodates most open end wrenches UP TO 4 FEET OF NUT BUSTING POWER for stuck, frozen seized nuts & bolts
- Professional Cr-V Steel ~GUARANTEED FOR LIFE ~Patented

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Head Style | Gabelschlüssel |
| Operation Mode | Mechanical |
| Finish | Polished |
| Material | Chrome Vanadium Steel |
| Item Length | 5 Inches |
| Item Package Quantity | 1 |

## Product Details

- **Brand:** Keyfit Tools
- **Material:** Chrome Vanadium Steel
- **Item length:** 5 Inches
- **Item package quantity:** 1
- **Head style:** Gabelschlüssel

## Images

![Keyfit Tools Big Bertha Breacher Stubby Large 1 Inch I.D. Breaker Bar Wrench Extender Works on Ratchets Pliers Wrenches Up to 4 Feet of Nut Busting Power No More Makeshift Cheater Bars/Pipes - Image 1](https://m.media-amazon.com/images/I/71AvAfFzPZL.jpg)
![Keyfit Tools Big Bertha Breacher Stubby Large 1 Inch I.D. Breaker Bar Wrench Extender Works on Ratchets Pliers Wrenches Up to 4 Feet of Nut Busting Power No More Makeshift Cheater Bars/Pipes - Image 2](https://m.media-amazon.com/images/I/71iGJ9R5HdL.jpg)
![Keyfit Tools Big Bertha Breacher Stubby Large 1 Inch I.D. Breaker Bar Wrench Extender Works on Ratchets Pliers Wrenches Up to 4 Feet of Nut Busting Power No More Makeshift Cheater Bars/Pipes - Image 3](https://m.media-amazon.com/images/I/71+TK5hr7qL.jpg)
![Keyfit Tools Big Bertha Breacher Stubby Large 1 Inch I.D. Breaker Bar Wrench Extender Works on Ratchets Pliers Wrenches Up to 4 Feet of Nut Busting Power No More Makeshift Cheater Bars/Pipes - Image 4](https://m.media-amazon.com/images/I/71zBl2bNS9L.jpg)
![Keyfit Tools Big Bertha Breacher Stubby Large 1 Inch I.D. Breaker Bar Wrench Extender Works on Ratchets Pliers Wrenches Up to 4 Feet of Nut Busting Power No More Makeshift Cheater Bars/Pipes - Image 5](https://m.media-amazon.com/images/I/71TT8LLcj-L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Must have in the tool box.
  

*by T***E on Reviewed in the United States on 7 April 2021*

If you are like me and work on your own equipment then this is great to have in the toolbox. We all had that stubborn bolt or nut that needed a little extra leverage to loosen it. This allows you to use wrenches and rackets to gain that extra leverage to loosen those nuts and bolts. No more sliding a pipe onto the end of the rachet or trying to put two wrenches together to gain that extra leverage. This tool makes it so easy you will be happy it is in the toolbox.

### ⭐⭐⭐⭐ 







  
  
    Expensive, but high quality steel. Could be finished better.
  

*by R***W on Reviewed in the United States on 7 February 2021*

The steel used is about the best there is, so this thing should be impossible to break. But it looks like a shop project. The chrome plating is rough and uneven. There's rust inside of it. The manufacturer's decal is an inkjet printed Avery label. I peeled off the label and bits of chrome stuck to the label. My guess is that's probably a smaller manufacturer that's putting the $$$ into the bones and not the looks. The thing weighs over a pound!There's openings for a 3/8" and 1/2" bar. My 1/2" fits perfectly. My 3/8" did not. So I tried several 3/8" socket sets and adapters. About half fit. I measured the opening with a digital caliper and it's slightly larger than 3/8" - it's 49/128'ths. 9.72mm. The 1/2" opening is within 3 decimal places of being 1/2".So 3/8" is not 3/8" when it comes to tools. I measured my breaker bar end and socket handles - surprisingly all the ones that did not fit were larger than 3/8". Huh. Go figure. So I really can't blame this tool for that, but it's something to keep in mind. I'll only use the 1/2" or a length of pipe anyway.The end tab is .987"x.385" - my 1" pipe breaker bar fits over it perfectly, with just enough room.

### ⭐⭐⭐ 







  
  
    Useful tool but needs modification to work properly
  

*by E***C on Reviewed in the United States on 3 February 2021*

The first thing I want to say about this breaker tool is the pricing makes no sense when you consider the quality you are getting. This is a cast steel piece that is thick and has worked well to use as a breaker bar but it just hasn't been made very well. First, there is rust inside the unit right out of the package. I took a photo to demonstrate.Next, you are going to need a 1/2 breaker bar because the 3/8 inch does not fit until you take a grinding tool to the square to open it up a little. It's fine but give me a break. Almost 50 dollars for this thing? That's too high and Keyfit Tools should be embarrassed at the quality level here. For 20 dollars I wouldn't complain but this is a premium price for a fairly cheap looking product with rust inside of it and my tool doesn't even fit in one of the two provided socket holes. To be fair, in all the product photos it only shows a 1/2 inch tool being used and I don't see it advertising that it works with 3/8 inch which is why I'm still giving this an average rating. To be fair, if you really want to get a lot of leverage on this, you are going to need a long tool. I have a 30 inch long 1/2 inch socket breaker bar and this tool really helps attach those to hex wrenches, open ended wrenches, and other various tools when needed.As far as this device being "ultra compact" and "stubby", I don't know. It's not huge but it definitely requires some working room but it is no larger than a long impact socket like you would use to remove a lug nut. We will see if it breaks. It doesn't look very strong but I was unable to damage it during testing so maybe it's stronger than I realize. I am not sure why that second hole is there if it's not for a 3/8 drive tool but I grinded it out a bit and it works now, just in case I want to use it in the future. I've been using it mostly with my long 1/2 inch drive breaker bar and it fits nicely and this is nice to have in the tool box when I need a little extra help loosening a stubborn bolt or something torqued higher than my power tools can handle.

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*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-01-28*