12-Inch 8T PCD Tip Hardie Fiber Cement Saw Blade - Long Lasting Cuts

In this review of the 12-in 8T PCD Tip Hardie Fiber Cement Saw Blade, the bottom line is clear: this blade is for contractors and serious DIYers who need a tool that cuts ultra hard materials with speed and minimal dust. The single biggest reason to buy is its polycrystalline diamond tipped teeth that deliver markedly longer life and cleaner cuts compared with standard carbide options. For anyone regularly cutting fibre cement, HardiePlank or similar dense boards, this blade is presented as a focused, performance-oriented choice rather than a general-purpose blade.

Key Features

• Polycrystalline diamond tips: Eight PCD teeth provide extended cutting life so users can make many cuts before replacing the blade.
• Ultra thin kerf: The 2.2 mm thin kerf reduces waste and requires less motor power, letting saws run cooler and cut faster through dense boards.
• Laser-cut body: A precision laser-cut steel plate maintains concentricity for straighter cuts and smoother operation on miters and circular saws.
• Anti-vibration slots: Expansion and anti-vibration slots lower noise and flutter so cuts stay accurate and produce less dust.
• Wide compatibility: The 1-in DMK arbor fits the majority of 12-in miter saws, making it easy to swap into common jobsite saws.
• High RPM rating: Rated to 5000 RPM so it is suited to standard 12-in saw speeds used for heavy-duty cutting tasks.

Who It's For

The blade is aimed at professionals and homeowners tackling remodelling jobs that involve fibre cement board, Corian, MDF or very dense siding like HardiePlank. Its PCD teeth and thin kerf make it a good match for long runs of panel cutting where durability and low dust are priorities.

Those who should look elsewhere include users who only occasionally make small cuts in softwoods or need a multi-purpose blade for wood, laminate and nonferrous metals. For occasional carpentry or general-purpose ripping, a standard carbide blade offers better value.

Pros & Cons

Pros

• Exceptional cut quality on fibre cement and other ultra hard materials, producing clean edges with minimal chipping.
• Good blade performance with reduced dust output thanks to the thin kerf and slot design.
• Perceived value for money for users who need extended life from every blade change.
• Easy compatibility with common 12-in miter saws using the 1-in arbor.

Cons

• Durability receives mixed feedback; some users report the blade begins to wear after a modest number of cuts, so longevity can vary by workload.
• With only eight teeth, finishing cuts in softer materials may lack the tooth count preferred for mirror-smooth edges.

Specifications

Diameter	12 in
Teeth	8 polycrystalline diamond tipped teeth
Kerf	2.2 mm ultra thin
Arbor	1 in DMK
Max RPM	5000
Designed for	Fibre cement, HardiePlank, Corian, MDF

Our Verdict

The 12-in 8T PCD Tip Hardie blade is a focused tool for tradespeople who cut fibre cement and other very hard panels regularly; it delivers cleaner, faster cuts with less dust and a longer edge life than typical carbide blades, making it a solid value for demanding jobs. Buyers seeking a multi-purpose woodworking blade should consider alternatives, but for siding and cement board work this blade is worthwhile.

Frequently Asked Questions

Will this blade fit my 12-in miter saw?
Yes, it uses a 1-in DMK arbor which is compatible with the majority of 12-in miter saws; confirm your saw's arbor size before purchasing.

Is this blade suitable for cutting Corian and MDF?
Yes, it is specially designed to handle fibre cement and other ultra hard materials including Corian and thick MDF panels.

How long does the blade last compared to carbide blades?
The PCD tipped teeth are reported to last substantially longer, with manufacturers and many users noting up to dozens of times more cutting life than standard carbide, though actual durability can vary by workload.