Introducing the Diablo James Hardie 6-1/2 in. Polycrystalline Diamond Track Saw Blade with 4 teeth — a purpose-built solution for cutting hard fiber cement and other dense materials. Designed to work with common track saws, this blade combines Longevity, precision, and speed to help you complete Hardie board projects—from siding and trim to panels—with consistent, professional results.
The secret is the polycrystalline diamond (PCD) edge. Unlike traditional carbide blades, the PCD edge resists wear and maintains an exceptionally sharp cut, which translates to longer blade life and cleaner edges even after repeated passes through Hardie board and similar cementitious substrates. The 4-tooth configuration delivers aggressive removal for quicker cuts through tough materials, while the slim 0.07" kerf minimizes waste and reduces the load on your saw for smoother operation at higher RPMs.
Key specifications at a glance
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Diameter: 6-1/2" (165 mm)
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Arbor size: 20 mm
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Teeth: 4
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Kerf: 0.07" (thin kerf for efficient cuts)
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Material: Polycrystalline Diamond (PCD)
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Maximum speed: 8,800 RPM
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Compatibility: Bosch, DeWalt, Makita, Milwaukee, Ryobi track saws
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Packaging: Clamshell
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Brand/Sub-brand: Diablo / James Hardie
Who this blade is best for
Ideal for professional remodelers, cabinetmakers, and serious DIYers who frequently work with fiber cement—especially James Hardie Hardie board siding, trim, and panels. If your workflow includes long runs or repeated cuts in cementitious materials, this blade delivers durability and performance you’ll notice on the first pass and every cut thereafter.
How it stacks up against alternatives
Compared to conventional carbide track saw blades, the Diablo James Hardie blade leverages a PCD edge that maintains sharpness longer under heavy use, reducing substitution downtime. The 6-1/2" diameter paired with a 20 mm arbor broadens compatibility across popular saw models, while the thin kerf supports faster feed rates without sacrificing edge quality—crucial for clean, square joints on Hardie board installations.
Practical tips for best results
- Pair the blade with a compatible track saw and verify arbor fit before cutting.
- Use steady, controlled feeds to maximize edge life and minimize chipping on cementitious materials.
- Employ dust collection or a shop vac to keep cuts clean and reduce airborne dust.
- Wear eye and respiratory protection when cutting fiber cement products.
- Allow the blade to cool between extended cutting runs to preserve the integrity of the diamond edge.
With the Diablo James Hardie 6-1/2 in. Diamond Track Saw Blade, you get a purpose-built tool that tackles hard, fiber cement projects head-on. Precision, durability, and broad compatibility help you complete siding, trim, and panel work faster and with less maintenance—making it a smart addition to any contractor’s or ambitious DIYer’s lineup.
