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I think the blade accounts for 25% of the cost and the name HardiBlade accounts for the rest. It is a thin kerf steel blade with four tiny teeth tipped with diamond dust. 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.
The blade has worked flawlessly on 500 sf of fiber cement board. This is the only PCD fiber cement blade I have used but I rate it 5 of 5.
It's still kicking up dust and chips. 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 may be a tad less, but not worth mentioning in my opinion.The cuts were slightly smoother though.So if I had to do it all over again, I would save my money.unless I was cutting these boards all day every day. 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.
After making several cuts, even ripping 12 foot siding, this blade never slowed or loaded. I've tried one other blade but this was the best performer hands down.
Excellent product. Dust is minimal compared to diamond blades and much faster. I put the blade on an old Craftsman saw to cut Hardie siding and trim. It cuts just as fast as cutting wood with a good blade.
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