Hitachi 18008 4-Teeth Polycrystalline Diamond 7-1/4-Inch Dry Cutting Hardiblade Saw Blade
by Hitachi
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Product Details
Manufacturer: HitachiModel: 18008
Product features:
- 1,000-cuts per blade
- Polycrystalline Diamond Teeth (4)
- Made for cross cutting fiber cement board
- 7-1/4-Inch blade
- Comes with a 30-day limited warranty
- This Old House
- Graphic Guide to Frame Construction: Details for Builders and Designers
- 2 Pack Hitachi 18008 7-1/4" x 4 Tooth Circular Saw Cross Cut and Sizing Hardiblades 5/8" Arbor
- 12 Pack Hitachi 18008B 7-1/4" x 4 Tooth Circular Saw Cross Cut and Sizing Hardiblades 5/8" Arbor
Description of Hitachi 18008 4-Teeth Polycrystalline Diamond 7-1/4-Inch Dry Cutting Hardiblade Saw Blade
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.
Tools and Hardware Reviews of Hitachi 18008 4-Teeth Polycrystalline Diamond 7-1/4-Inch Dry Cutting Hardiblade Saw Blade
Customer Review: No disappointments here!
Summary: 5 Stars
This blade, made specifically for cutting fiber cement boards/planks, has lived up to my expectations so far. I'm a homeowner, doing my own re-siding of my home with Hardiboard planks, and I'm only about 2/3 the way done. I've had to make a lot of cuts because of multiple sides, windows etc, and have gone thru several 'certified' Hardie approved (4 tooth) blades, i.e Freud, Irwin, but they DID NOT have PCD (polycrystalline diamond) inserts. Those blades, while holding up better than a standard carbide blade would, started showing signs of wear after about 30-40 cuts, shooting sparks and such.
I read about these blades by Hitachi (DeWalt, Makita and others also have them with PCD) and the review/price seemed to make the Hitachi the best value. Good value, doesn't mean cheap!
I bought the 7-1/4" and 10" variants of the this Hitachi blade, and have made hundreds of cuts so far, with no signs of degraded cutting ability.
I use the 7-1/4 only for my circular saw for ripping. As promised, and printed on the label of this 10" blade, you can gang together up to 5 planks to cut at one time...and it works flawlessly. I use a Bosch compound miter saw and it literally makes the cut so cleanly, even after hundreds of cuts, that I simply wipe the edge with my hand before nailing the planks up. No more using a knife to cut away the jagged edges left by poor quality blades.
If you're like me, you hate dealing with the dust of cutting fiber cement boards. If using a compound or chop saw, you will cut thru so fast, with so little dust, for some cuts and having a light breeze to take the dust from you, you'll be tempted to now put the mask on every time. Not recommended, but a testament to how much less dust these do generate.
I'm very happy with this product and will gladly pay the extra dollars for PCD blades like this Hitachi again if needed. Only way to go!
More Hitachi 18008 4-Teeth Polycrystalline Diamond 7-1/4-Inch Dry Cutting Hardiblade Saw Blade Customer Reviews:
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