The PacTool SS404 Fiber-Cement Shear cuts fiber-cement siding quickly, safely, and economically. Featuring reversible blades that are machined from solid steel, this versatile tool provides smooth, fast operation you can rel...

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Product Review

The PacTool SS404 Fiber-Cement Shear cuts fiber-cement siding quickly, safely, and economically. Featuring reversible blades that are machined from solid steel, this versatile tool provides smooth, fast operation you can rely on. Most important, the SS404 won't produce airborne silica dust, so you can count on your jobsite being as healthy as can be.


The PacTool SS404 Fiber-Cement Shear
At a Glance:
  • Cuts cement-fiber siding quickly and safely
  • Eliminates airborne dust for a clean, healthy job site
  • 6.5 Amp motor, 1/2-inch spindle gear, and 360-degree swivel head
  • Double-ended blades will handle up to 20 houses


Leave others in the dust with the SS404.
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Powerful Motor and Innovative Engineering for Reliable Performance
Designed to cut fiber-cement siding up to 5/16-inch thick, this patented tool boasts a smart design and amazing durability. A robust 6.5-amp motor, 1/2-inch spindle gear, and 360-degree swivel head combine with comfortable ergonomics for optimum performance, even on all-day jobs.

Dust-Free Cutting for a Healthy, Worksite
Productivity doesn't just mean getting the job done fast, it also means keeping your workplace safe. All cement-fiber siding contains silica, which is harmless unless large quantities are inhaled as dust. Because the SS404 doesn't produce airborne dust like circular saws do, you'll completely avoid the serious health risks associated with silica.

Long-Lasting, Double-Ended Blades
The SS404 features reversible blades machined from solid steel that provide 20,000 feet of cutting. Because these blades are reversible, they'll last through 20 houses' worth of siding jobs--twice as long as single-ended blades and 45 times as long as circular-saw blades.

This compact tool is not only versatile, but it's also cost-effective, boasting an average blade cost of just three dollars per house.

What's in the Box
SS404 fiber-cement shear, blades, and manual.




  • ELECTRIC TOOLS: Our corded, 110-volt shears are specifically designed to cut 5/16-inch fiber cement siding. Combining our well-known precision-machined cutting head with a powerful 6.5 amp motor-1/2-inch drive, making this ideal for professionals.
  • CONTRACTOR TOOL: If you need to work on several homes, these electric shears are for you. Made with reversible and replaceable solid tool steel blades, this cutting tool can support 20,000 linear feet, equivalent to approximately 15 average houses.
  • CUT OUT TOOL: Created to shear cement siding with ease rather than cutting it, this tool is capable of making precise, fast, and consistent cuts. Ideal for use on pre-painted siding, always cut planks face down for perfect, crisp, and finished edges.
  • SMART SHEARS: This tool minimizes harmful airborne dust allowing workers to cut, install, and repair both indoors and outdoors. This dramatically increases efficiency, clean-up and keeps those who are working on-site safe from dangerous particles.
  • PACTOOL: Trusted for decades, we are the leaders in specialized construction, renovation, and remodeling designs. Our patented product line inspires craftspeople and DIYers to work smarter, measure better, and repair more efficiently.

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