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Hitachi 18109 Hitachi's new 12" Hardie-Blade is designed to use in most 12" miter saws. This blade has a 1" arbor with an 8 tooth design for a dust reducing cut. The polycrystalline diamond tips provide more durability and a longer lifew than other diamond or carbid tipped blades. The polycrystalline diamond tps also have self sharpening properties. 5 times longer cutting life than other diamond tipped blades and 30 times longer than traditional carbide blades.
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This Hitachi Hardi-Blade Circular Saw Blade has a 12-inch diameter and is made for use with most 12-inch miter saws. This blade has a 1-inch arbor, and its special 8-tooth design provides precise, dust-reducing cuts. The blade's highly durable polycrystalline diamond tips provide 5 times longer cutting life than other diamond-tipped blades and 30 times longer cutting life than traditional carbide blades. The polycrystalline diamond tips also have self-sharpening properties. This blade is ideal for ripping, crosscutting, and mitering in fiber cement boards and siding. This product is backed by a 5-year limited warranty extended to the original purchaser.
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Hardie Board Siding
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I highly recommend the Hitachi blade for installing Hardie Board. I installed siding on a 2700 sq foot house and a 24x36 out building and the blade was still working great.
Ray Jackson
Orlando, Fl
Rating: 
(5
out of 5) @ 2008-04-15
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Cuts cleanly and lasts
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These blades are great: clean cuts, not terribly loud, and durable. Used them on a large Hardie siding job and would use them again.
Rating:
(5
out of 5) @ 2007-01-20
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Must have for Hardi-Plank siding
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Title says it all. Great blades. These things slice through fiber cement siding like a hot knife through butter. VERY low dust too. Long life on blade--I did a three car garage and attached 170 sq ft mudroom on one blade with no real noticeable dulling of blade. If you were siding a whole house or larger addition, you'd probably need two blades though.
Rating:
(5
out of 5) @ 2006-12-16
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Cuts cleanly
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Not much needs to be said. This one delivers what you want in a saw blade; no noticeable vibration, cuts cleanly (top and bottom faces!), and lasts a long time considering you are essentially cutting cement and paper. Used on a 12" Bosch SCMS.
One other thing, if you are considering following the manufacturer's advice and using a power shears to cut fiber cement instead of a saw blade to minimize dust, save your money, buy a dust mask, and get this blade. The shears won't ever get you consistent edges and smooth cuts like this (I regretably wasted my money on the PC one). Also, use a sharp utility knife blade to do the 'score and snap' method for those cuts the SCMS cannot do -- and get the Malco nippers too!
Rating:
(5
out of 5) @ 2006-09-08
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