The Diablo 12" x 8-Teeth HardieBlade Saw Blade for Fiber Cement is a professional-grade cutting solution engineered specifically for fiber cement siding, panels, and stacked cutting applications. Powered by a PolyCrystalline Diamond (PCD) triple chip design, this Diablo blade is the only PCD-tipped fiber cement saw blade exclusively approved by James Hardie Building Products - making it the go-to choice for contractors and installers who demand precision, longevity, and reduced dust exposure on every job site. Whether you are cross-cutting fiber cement siding or making repetitive production cuts on a miter saw or slide miter saw, the HardieBlade delivers clean, smooth results with drastically less blade wear than conventional carbide alternatives.

Key Features

• Exclusively approved by James Hardie Building Products as the only PCD-tipped fiber cement blade to earn their recommendation - gives professionals confidence that this blade meets the highest standards for fiber cement applications
• PCD triple chip design lasts over 75 times longer than standard carbide blades - dramatically reduces blade replacements and downtime on fiber cement siding and panel projects
• Reduces respirable dust by up to 50% - helps protect workers from hazardous airborne particles generated during fiber cement cutting (note: dust generation does not necessarily correlate directly to exposure risk)
• Triple Chip Grind (TCG) tooth geometry produces clean, smooth finishes with virtually no tear out - ideal for finish-quality cuts on fiber cement siding and panels
• Perma-Shield non-stick coating protects the blade against heat, gumming, and corrosion - extends blade life even under demanding, continuous use
• Tri-metal shock resistant brazing allows PCD tips to withstand extreme impact - maximizes durability in the abrasive conditions of fiber cement cutting
• Advanced stabilizer vents provide an ideal combination of stability and rigidity - ensures precise, consistent cuts and reduces blade flex during operation
• Laser-cut arbor reduces vibration and premature wear - promotes accurate blade rotation for straighter, cleaner cuts over the full life of the blade
• Compatible with corded and cordless miter saws - delivers more cuts per battery charge versus standard blades, extending tool runtime on battery-powered equipment
• Precision laser-cut thin kerf at.087" - minimizes material waste and reduces cutting resistance for faster, more efficient throughput

Why This Product

• The only PCD-tipped fiber cement blade with exclusive James Hardie endorsement - professionals installing HardiePlank, HardiePanel, or other James Hardie products can use this blade knowing it is purpose-approved for those exact materials
• A PCD cutting edge that outlasts standard carbide by more than 75x means fewer blade changes, lower long-term tooling costs, and less interruption during large fiber cement siding installations
• The combination of dust reduction technology and a thin.087" kerf makes this blade a practical choice for job sites where air quality and material waste are ongoing concerns
• Engineered for both miter saws and slide miter saws at up to 6000 RPM, this blade fits seamlessly into the tool setups most siding contractors already use - no special equipment required

Specifications

• Brand: Diablo
• Sub-Brand: HardieBlade
• Manufacturer Part Number: D1208DH
• Category: Specialty - Fiber Cement Circular Saw Blades
• Diameter: 12"
• Teeth: 8 TCG (PCD)
• Arbor: 1"
• Kerf: .087"
• Hook Angle: 10 deg.
• Plate: .063"
• Maximum RPM: 6000
• Compatible Tools: Miter Saw; Slide Miter Saw
• Materials: Fiber Cement
• Usage: Siding, Panels, single & stacked cutting in fiber cement product only
• Pack Quantity: 1
• Country of Origin: Italy

Approved Applications

• Fiber Cement Cutting

Frequently Asked Questions

What types of saws is the Diablo HardieBlade D1208DH compatible with?

The D1208DH is designed for use with miter saws and slide miter saws. It features a 1" arbor, a 12" diameter, and a maximum operating speed of 6000 RPM. It is compatible with both corded and cordless saw platforms.

Can this blade be used on materials other than fiber cement?

No. The Diablo HardieBlade is specifically engineered for fiber cement product only - including siding, panels, and single or stacked cutting configurations. It is not rated or approved for use on other materials.

How does the PCD tooth design compare to standard carbide blades for fiber cement cutting?

The HardieBlade uses a PolyCrystalline Diamond (PCD) triple chip grind tooth design that lasts over 75 times longer than standard carbide blades. The TCG geometry also produces clean, smooth finishes with virtually no tear out, making it well-suited for finish-quality fiber cement work.

Does the HardieBlade help reduce dust when cutting fiber cement?

Yes. The HardieBlade is designed to reduce respirable dust by up to 50% compared to standard cutting methods. However, as noted by Diablo, dust generation does not necessarily correlate directly to exposure risk, so appropriate safety measures should always be used on the job site.