---
product_id: 7591497
title: "SS424 Backerboard Shear - Fiber Cement Cutting -Contractor Grade- Professional Power Tools"
brand: "pactool"
price: "฿21003"
currency: THB
in_stock: true
reviews_count: 11
category: "Pac Tool"
url: https://www.desertcart.co.th/products/7591497-ss424-backerboard-shear-fiber-cement-cutting-contractor-grade-professional-power
store_origin: TH
region: Thailand
---

# 6.5-amp contractor-grade motor Reversible solid tool steel blades Dust-minimizing shearing action SS424 Backerboard Shear - Fiber Cement Cutting -Contractor Grade- Professional Power Tools

**Brand:** pactool
**Price:** ฿21003
**Availability:** ✅ In Stock

## Summary

> 🔧 Cut Clean, Cut Fast, Cut Like a Boss!

## Quick Answers

- **What is this?** SS424 Backerboard Shear - Fiber Cement Cutting -Contractor Grade- Professional Power Tools by pactool
- **How much does it cost?** ฿21003 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/7591497-ss424-backerboard-shear-fiber-cement-cutting-contractor-grade-professional-power)

## Best For

- pactool enthusiasts

## Why This Product

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

## Key Features

- • **Blade Game Strong:** Reversible, replaceable solid tool steel blades engineered for up to 20,000 linear feet of precision cutting.
- • **Breathe Easy On Site:** Innovative dust-minimizing design keeps your workspace OSHA-compliant and your crew safe.
- • **Cut Smarter, Not Harder:** Designed specifically to shear—not score—backerboard for flawless, consistent trims and curves.
- • **Power Through Like a Pro:** 6.5-amp motor delivers fast, clean cuts up to 1/2-inch thick fiber cement effortlessly.
- • **Versatility Meets Stability:** Ambidextrous dual-handle design ensures control and comfort for inside corners, curves, and straight cuts.

## Overview

The PacTool SS424 Backerboard Shear is a professional-grade electric shear powered by a robust 6.5-amp motor, engineered to make fast, precise cuts up to 1/2-inch thick on Hardiebacker fiber cement boards. Featuring reversible solid tool steel blades capable of handling 20,000 linear feet, this tool eliminates dust with its smart shearing action, ensuring OSHA compliance and a cleaner job site. Its contractor-focused design offers superior control for straight and curved cuts, making it an essential upgrade for pros and serious DIYers aiming for flawless tile and siding installations.

## Description

Product Description Get ready to tackle and conquer your next construction job with our patented precision-engineered SS424 Backerboard Shear combined with a powerful 6.5-amp motor perfect for professional contracting jobs. This quiet snapper tool makes fast, clean cuts up to 1/2-inch thick of Hardie backer fiber cement underlayment. Our electric cutter comes equipped with reversible and fully replaceable solid tool steel blades, with the ability to support 20,000 linear feet. Ideal for indoor and outdoor work, including floors, walls, and counters, complete any tiling job smoothly and skillfully. Make your worksite OSHA compliant with virtually no airborne dust from the shearing action, this tool makes any job faster and safer for everyone at the location, ensuring an OSHA-compatible job site. At PacTool, we are known for our outstanding line of exterior products in the construction, renovation, and remodeling sector and take pride in providing exceptional solutions that help to reduce fatigue and frustration for craftspeople, artisans, and DIYers. desertcart.com Looking for the quickest, cleanest way to install tile? The Razorbacker from PacTools International slices through HardiBacker super fast, easy and straight -- and it cuts great curves too. There's no dirty cement dust or grit to scratch enamel or ceramics and make your clean-up a headache. P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); From the Manufacturer The Backerboard Shear cuts HardiBacker backerboard up to 1/2" thick. Not for siding. For straight and curved cuts. Smooth, fast, and dust-free operation. Based on a 1/2" 6.5-amp motor. Reversible blades machined from solid tool steel. See more

Review: Great tool for Fiber cement siding - I was a bit leery at first, not sure it would work properly on a 18v plus drill. Boy was I wrong. This tool is a must have for Fiber cement siding. It is quiet, smooth, and quick. No Dust, and no flying particles. I was amazed at the tools performance. It cuts curves perfectly, as long as you can keep a straight line, and it makes cutting the boards a breeze. I cannot say enough great things about this tool. This was our first attempt at installing fiber cement siding on our new house, and the tool help take a bit of the stress away. I love it. The dual sided handle makes it great for stability.
Review: Great Tool… - I have come across hundreds of tools in my 28 years as a residential contractor. Some tools serve their purpose better than others. Some tools disappoint you while others go above and beyond their functions making a hard job turn into a pleasant surprise. The Snapper Shear Pro surprised me. I was hesitant at first. But, after attaching it and sticking the first cut I realized that you can’t go wrong with this easy to use tool. Does works as described. Straight cuts every time, fancy shapes cuts. Just amazing, I was able to cut hundreds of fiber cement boards and the tool is still going strong. Easy to attach to most drills…. Look at pictures showing the Snapper Shear Pro attached to a 18v Bosch Cordless Drill.

## Features

- CONTRACTOR TOOL: Cutting is finally easy with this precision-machined shear head with a contractor-grade 6.5-amp motor, capable of powering through to make fast, clean cuts up to 1/2-inch thick of Hardiebacker fiber cement underlayment.
- CEMENT BOARD: Get the tile project done with our electric metal shear. This tool is specifically designed to shear the backer board rather than cut so that it trims and strips off sheets making precise, fast, and consistent cuts.
- CUT OUT TOOL: No more score and snap. This tool's versatility makes it ideal for inside corner cuts, with far fewer broken corners. Equipped with reversible and replaceable solid tool steel blades, this cutting tool can support 20,000 linear feet.
- SMART SHEARS: Developed to minimize harmful airborne dust while using it, this product allows workers to cut and install both inside and outside of the worksite, increasing efficiency, clean-up, and keeping everyone safe from dangerous particles.
- PACTOOL: Trusted for decades, we are the leaders in specialized construction, renovation, and remodeling designs. Our cutting-edge product line inspires craftspeople and DIYers to work smarter, measure better, and repair more efficiently.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000807GPO |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #53,557 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #34 in Power Shears |
| Blade Edge | Straight |
| Blade Material | Alloy Steel |
| Brand | PacTool |
| Color | Green |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,696) |
| Date First Available | April 1, 2004 |
| Finish | Brushed |
| Finish Type | Brushed |
| Global Trade Identification Number | 00645646424003 |
| Hand Orientation | Ambidextrous |
| Handle Material | Alloy Steel |
| Included Components | PacTool International SS424 Backerboard Shear |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 5.88 pounds |
| Item model number | SS424 |
| Manufacturer | General Tools |
| Material | Metal |
| Number of Items | 1 |
| Part Number | SS424 |
| Pattern | Cutting Tool |
| Point Style | Corded |
| Power Source | corded-electric |
| Product Dimensions | 10.9"L x 3.5"W |
| Style | Corded |
| UPC | 645646424003 645646420005 |
| Unit Count | 1.0 Count |

## Product Details

- **Blade Material:** Alloy Steel
- **Brand:** PacTool
- **Color:** Green
- **Material:** Metal
- **Product Dimensions:** 10.9"L x 3.5"W

## Images

![SS424 Backerboard Shear - Fiber Cement Cutting -Contractor Grade- Professional Power Tools - Image 1](https://m.media-amazon.com/images/I/51Y2WMDP32L.jpg)

## Questions & Answers

**Q: Will this cut 1/2 cementboard?**
A: It cuts hardie backer board better than cement board because cement board is more of a cemented material with thread inserted.

**Q: Can i use this on a 20v drill?**
A: yes you can i use mine with a a ridgid 18 volt drill just make sure it is a drill and not a impact driver

**Q: Can this be used to cut 5/16" cement board siding (cemplank), as opposed to backer board?**
A: Absolutely.  In fact, I didn't know it would cut backer board.  I built a shed with 5/16" hardiboard siding all the way around, and it was one of the life savers of the project.

**Q: I want to add trim around windows, can this be used on already installed cement fiber board?**
A: No, the cutting mechanism on the tool needs at least 1” space behind the board in order to travel freely up and down while it cuts

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great tool for Fiber cement siding
*by 5***I on April 24, 2024*

I was a bit leery at first, not sure it would work properly on a 18v plus drill. Boy was I wrong. This tool is a must have for Fiber cement siding. It is quiet, smooth, and quick. No Dust, and no flying particles. I was amazed at the tools performance. It cuts curves perfectly, as long as you can keep a straight line, and it makes cutting the boards a breeze. I cannot say enough great things about this tool. This was our first attempt at installing fiber cement siding on our new house, and the tool help take a bit of the stress away. I love it. The dual sided handle makes it great for stability.

### ⭐⭐⭐⭐⭐ Great Tool…
*by M***Z on September 24, 2025*

I have come across hundreds of tools in my 28 years as a residential contractor. Some tools serve their purpose better than others. Some tools disappoint you while others go above and beyond their functions making a hard job turn into a pleasant surprise. The Snapper Shear Pro surprised me. I was hesitant at first. But, after attaching it and sticking the first cut I realized that you can’t go wrong with this easy to use tool. Does works as described. Straight cuts every time, fancy shapes cuts. Just amazing, I was able to cut hundreds of fiber cement boards and the tool is still going strong. Easy to attach to most drills…. Look at pictures showing the Snapper Shear Pro attached to a 18v Bosch Cordless Drill.

### ⭐⭐⭐⭐⭐ after searching for a better way to cut backer board
*by M***T on October 19, 2015*

I bought this tool after starting a bathroom remodeling project in which I removed old sheetrock and tile and installed concrete backer board. Man oh man I really wish I would have known about this tool before I started cutting my Hardie Backer...I started off using the score and snap method to break my Hardie Backer board, but as one other reviewer said the score and snap method is only for bigger pieces of board; once you start having to measure and cut smaller pieces of concrete board then scoring and snapping just doesn't work unless you possess the strength of three Lou Ferrignos. Further, scoring and snapping leaves sort of a rough, jagged edge that doesn't lend itself well to clean corners. So, after searching for a better way to cut backer board, I bought the SS424. This tool absolutely makes easy work of cutting backer board; I used it to cut half-inch thick board and it worked beautifully. As others have said, it does take practice to learn how to cut along a straight line, but once you get good with it you will never want to use anything else. Some people will say to use a table saw with a special concrete fiber cutting blade, but that way of cutting board creates SO much dust; the SS424 creates almost no dust thus lowering your silica exposure risk. Also, once again as others have said, a little backer board will curl up between the cutting blades and this can get in the way of following your cutting line, but after a few cuts you sort of learn to deal with it. If you have tried scoring and snapping do yourself a favor and buy this tool. I'm pretty sure that if they made backer board back in the 14th century then Dante would have listed scoring and snapping this stuff all day as the tenth circle of Hell. I like this tool so much that I considered buying a second one just so I can sleep next to it at night. Thanks, I hope this review helped someone.

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-28*