Kerf: .087". Plate: .063". Carbide Grade: Diamond. Crosscutting and ripping of fiber cement board, siding and trim.
Hitachi 18008 Hitachi's new Hardie-Blade features polycrystalline diamond technology that provides more durability and a longer cutting life than other diamond or carbide tipped blades. The 7-1/4-inch polycrystalline blade is a diamond powder made from graphite, and are the only type that possess self-sharpening properties. Perfect for multi-plank cutting, this saw blade can cut up to 5 planks at once, and ensures over 1,000 cuts per blade.
Customer Reviews:
Avg. Customer Rating: 4.5 / 5.0
Does a good job, but should cost half as much.:
This blade does a good job of both ripping and cross cutting fiber cement siding. It is however, far too expensive for what it is. It is a thin kerf steel blade with four tiny teeth tipped with diamond dust. I think the blade accounts for 25% of the cost and the name HardiBlade accounts for the rest.
Hitachi Hardiblade:
This is the only PCD fiber cement blade I have used but I rate it 5 of 5. The blade has worked flawlessly on 500 sf of fiber cement board.
Not bad:
I have a Milwaukee Circular Saw with the original Endurance blade.
I was cutting Hardi siding with it. Endurance blade kicks up a lot of dust and and chips, etc. The cuts weren't all that bad though, a little rough around the edges, but then I came on here and read about this HardiBlade, and read the reviews on less dust, etc.
I didn't notice that for me. It's still kicking up dust and chips. It may be a tad less, but not worth mentioning in my opinion.
The cuts were slightly smoother... more info
Hitachi 18008 hardiblade:
I've tried one other blade but this was the best performer hands down. After making several cuts, even ripping 12 foot siding, this blade never slowed or loaded.
