The CMT ITK Plus Diamond Saw Blade for Fiber Cement - 12" x 1" T8 TCG is a professional-grade cutting tool engineered specifically for ultra-hard, abrasive materials including fiber cement siding, panels, and boards. Built with diamond-tipped technology and a Triple Chip Grind tooth profile, this blade delivers cutting life up to 60x longer than traditional carbide blades, making it the right choice for contractors and builders working with fiber cement products on portable circular saws and miter saws.

Key Features

• Diamond-Tipped Tooth Technology (DP Material) - engineered specifically for ultra-hard and highly abrasive materials like fiber cement, delivering cutting life up to 60x longer than traditional carbide blades so you spend less time changing blades and more time working.
• Triple Chip Grind (TCG) Tooth Geometry - designed for fiber cement and similar abrasive sheet goods, the TCG profile produces clean, chip-free cuts through Eternit, Swisspearl, Fermacell, Ivarplank, HardiePlank, HardiePanel, chipboard, MDF, plasterboard, and thermoplastic materials.
• 8-Tooth, 12" Blade Configuration - the low tooth count on a large-diameter blade allows fast, efficient material removal through dense fiber cement products while reducing heat buildup and blade stress.
• 12 deg. Cutting Angle - the positive hook angle promotes aggressive, controlled feeding through hard panel materials, reducing operator effort and improving cut consistency.
• 0.087" Kerf Thickness with 0.063" Plate - the kerf-to-plate ratio provides lateral stability during cutting, minimizing blade flex and reducing material waste on every pass.
• 25.4mm (1") Bore Diameter - fits standard arbors on popular portable circular saws and miter saws, making this blade a drop-in upgrade for most job site setups.
• Maximum 6,400 RPM Rating - rated for the high speeds generated by portable circular saws and miter saws, ensuring safe and consistent performance across compatible machines.
• ITK Plus Class (SBPLUS) - CMT's ITK Plus series represents a step up in blade technology, purpose-built for demanding fiber cement and specialty board applications where standard blades fail prematurely.

Why This Product

• Fiber cement materials like HardiePlank, HardiePanel, Eternit, and Swisspearl are highly abrasive and destroy conventional carbide blades quickly - this diamond-tipped blade lasts up to 60x longer, significantly lowering cost-per-cut on large siding or panel installation projects.
• The TCG tooth form is matched to the physical properties of fiber cement and related board materials, producing clean edges on every cut and reducing the cracking, chipping, or spalling that can occur with the wrong blade geometry.
• Compatibility with both portable circular saws and miter saws means one blade covers the two most common job site cutting setups, eliminating the need to stock separate blades for different machines.
• The 25.4mm bore and 12" diameter make this blade a direct fit for standard miter saw and circular saw arbors, so installation is straightforward and no adapter hardware is needed for most compatible machines.

Specifications

• Manufacturer Part Number: 236.008.12
• Brand: CMT Orange Tools
• Diameter: 12"
• Bore Diameter: 25.4mm
• Number of Teeth: 8
• Tooth Grind: TCG (Triple Chip Grind)
• Cutting Angle: 12 deg.
• Kerf Thickness: 0.087"
• Plate Thickness: 0.063"
• Maximum RPM: 6,400
• Tooth Material: Diamond (DP)
• Blade Class: ITK Plus (SBPLUS)

Approved Applications

• Fiber cement siding, panels, and boards (HardiePlank, HardiePanel, and similar products)
• Eternit fiber cement panels
• Swisspearl fiber cement panels
• Fermacell boards
• Ivarplank fiber cement planks
• Chipboard and MDF
• Plasterboard
• Thermoplastic materials
• Other ultra-hard and abrasive sheet goods

Frequently Asked Questions

What machines is this blade compatible with?

This 12" diamond blade is designed for use with portable circular saws and miter saws that accept a standard 25.4mm (1") bore and can accommodate a 12" diameter blade. Always verify your saw's maximum blade diameter and arbor size before installing.

How much longer does this blade last compared to a standard carbide blade on fiber cement?

According to CMT's product data, the ITK Plus diamond blade provides up to 60x longer cutting life than traditional carbide blades when used on fiber cement and similar ultra-hard abrasive materials. This dramatically reduces blade change frequency on large projects.

Why is a Triple Chip Grind (TCG) tooth form recommended for fiber cement cutting?

The TCG grind alternates between a flat-top tooth and a chamfered tooth, which distributes cutting forces more evenly across hard and brittle materials like fiber cement. This geometry helps produce cleaner edges and reduces the risk of chipping or cracking that can occur with other tooth profiles on dense panel products.

Can this blade cut materials other than fiber cement?

Yes. In addition to fiber cement brands such as HardiePlank, HardiePanel, Eternit, Swisspearl, Fermacell, and Ivarplank, this blade is also rated for chipboard, MDF, plasterboard, and thermoplastic materials - making it a versatile option for contractors who work across multiple ultra-hard and abrasive board products.