The CMT ITK Plus Diamond Saw Blade for Fiber Cement - 160mm, 4-Tooth TCG is a premium circular saw blade engineered by CMT specifically for cutting ultra-hard, abrasive sheet materials including fiber cement siding, plasterboard, and Eternit panels. With a diamond-tipped tooth design and Triple Chip Grind geometry, this blade delivers precise, chip-free cuts through some of the most demanding building materials encountered on job sites. Compatible with Festool machines as well as portable circular saws, miter saws, radial arm saws, and stationary table saws, the 160mm diameter and 20mm bore make it the right fit for metric-arbor equipment commonly used with track saw systems.

Key Features

• ITK Plus Diamond Tooth Technology - diamond-tipped teeth are purpose-built for ultra-hard abrasive materials like fiber cement, delivering significantly longer service life compared to conventional carbide teeth that wear quickly on silica-dense substrates.
• Triple Chip Grind (TCG) Tooth Geometry - the alternating flat and chamfered tooth profile shears through fiber cement, plasterboard, and Eternit cleanly, reducing chipping, cracking, and edge breakout for a professional finish.
• 4-Tooth Low-Count Design - the reduced tooth count promotes aggressive chip clearing and prevents heat buildup when ripping or cross-cutting dense fiber cement panels, helping maintain blade life and cut quality.
• 12 deg. Cutting Angle - the positive hook angle drives the blade efficiently through hard sheet material, reducing feed resistance and operator fatigue during repeated cuts.
• 160mm Diameter with 20mm Bore - sized for compact metric-arbor machines and track saws, including Festool systems, giving access to clean, controlled cuts in tight worksite conditions.
• Pin Hole Configuration 2/6/32 - compatible with machines requiring pin-hole arbor engagement, broadening the range of saws this blade can be mounted on without adapters.
• 0.094 in. Kerf Thickness - the tooth thickness is dimensioned for stability under load while minimizing material waste during each pass through fiber cement board.
• 0.071 in. Plate Thickness - the steel plate provides a rigid backbone that resists blade flex and deflection, helping maintain straight, accurate cuts through hard panel materials.

Why This Product

• Fiber cement is one of the most abrasive building materials a circular saw blade can encounter - this blade's diamond-tipped ITK Plus teeth are specifically designed for ultra-hard materials, making it a purpose-matched tool rather than a general-purpose workaround.
• The TCG tooth grind is the geometry of choice for brittle, chip-prone materials like fiber cement, plasterboard, and Eternit panels - it produces cleaner edges that require less remediation and protect the structural integrity of the cut board.
• At 160mm with a 20mm bore, this blade is built for the metric track saw and compact circular saw formats used extensively on finish carpentry and cladding installations, including Festool platform tools.
• With compatibility across portable circular saws, miter saws, radial arm saws, and stationary table saws, one blade can serve multiple tools on the same project, reducing the need to carry separate blades for different setups.

Specifications

• Manufacturer Part Number: 236.160.04H
• Brand: CMT Orange Tools
• Diameter: 160mm
• Bore Diameter: 20mm
• Pin Hole: 2/6/32
• Number of Teeth: 4
• Tooth Grind: TCG (Triple Chip Grind)
• Cutting Angle: 12 deg.
• Kerf Thickness: 0.094 in.
• Plate Thickness: 0.071 in.
• Tooth Material: DP (Diamond)
• Blade Class: ITK Plus

Approved Applications

• Cutting fiber cement siding and panels
• Cutting plasterboard
• Cutting Eternit sheet material
• Ultra-hard building material fabrication
• Use with Festool machines
• Use with portable circular saws and miter saws
• Use with circular, radial, and table saws
• Crosscuts and ripping in fiber cement cladding applications

Frequently Asked Questions

What makes this blade suitable for fiber cement rather than a standard carbide blade?

This blade uses diamond-tipped ITK Plus teeth rather than conventional carbide. Fiber cement is an ultra-hard, highly abrasive material that rapidly dulls carbide edges. Diamond tips are significantly harder and maintain a cutting edge through the silica-dense composition of fiber cement, plasterboard, and Eternit far longer than carbide alternatives.

Is this blade compatible with Festool track saws?

Yes. The product data explicitly lists compatibility with Festool machines. The 160mm diameter and 20mm bore align with the metric arbor format used by Festool circular and track saw platforms. The pin hole configuration of 2/6/32 provides additional mounting compatibility where required.

Why does a fiber cement blade only have 4 teeth?

A low tooth count is intentional for cutting dense, abrasive sheet materials like fiber cement. Fewer teeth mean larger gullets between each tooth, which allows debris to clear efficiently and prevents heat from building up at the cutting edge. This promotes longer blade life and a cleaner cut through hard panel products like HardiePlank, Swisspearl, Ivarplank, and Eternit.

What is Triple Chip Grind (TCG) and why is it specified for fiber cement?

TCG is a tooth geometry that alternates between a flat-top tooth and a chamfered trapezoidal tooth. This combination scores and then clears the material in a two-stage action that reduces the risk of chipping or cracking brittle sheet materials. For fiber cement and plasterboard - both of which can fracture along cut lines if the blade geometry is wrong - TCG produces cleaner, more controlled edges compared to alternate top bevel or flat-top grinds used on softer materials.