IRWIN Tools 12-Inch Fiber Cement PCD Circular Saw Blade, 8 Teeth (4935625) - Perfect for Cutting Fiber Cement, Hardie Board & Other Tough Materials
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SKU:39552425
Product Description
Product Description Polycrystalline diamond-tipped teeth will last up to 15X longer than standard carbide fiber cement blades. Thin kerf blade produces less dust than continuous rim blades. Ground and hardened plate body provides smooth and accurate cuts. IRWIN Tools Fiber Cement PCD Circular Saw Blade, 12-Inch, 8T (4935625) Amazon.com Working with fiber cement boards or siding puts special demands on your tools, and the Irwin Marathon 12-Inch by 8T Polycrystalline Diamond Fiber Cement Circular Saw Blade is up to the challenge. Built to provide smooth, accurate cuts while producing less dust than standard carbide fiber cement blades, this application-specific circular blade helps you handle big jobs quickly and safely. And it is designed to last 15 times longer than a standard carbide fiber cement blade.Ground, Hardened Body for Smooth, Accurate CutsIn order to perform well, a saw blade needs to start out flat and stay true throughout its life. Irwin Marathon blades, like this 12-inch fiber cement blade, feature well-balanced bodies that are laser cut then ground and hardened to help you achieve cuts that are smooth and accurate. This leads to more efficient work flow and cleaner, more precise end products.Polycrystalline Diamond-Tipped Teeth for DurabilityOverall performance often comes down to the configuration and dependability of a blade's teeth, and the long-lasting 12-Inch Polycrystalline Diamond Fiber Cement Blade is no exception. A low eight-tooth count and large gullets are suited to the specific demands of working with fiber cement products. Moreover, polycrystalline diamond (PCD) tips provide extended tooth life, allowing this Marathon blade to last up to 15 times longer than a standard carbide fiber cement blade.In addition to offering overall precision, the blade's laser-cut body also allows for a stronger tooth bond, which improves durability. This blade can handle cutting up to 9,000 feet of fiber cement before it needs to be replaced, which means less downtime for blade changes. And it can cut up to five stacks of fiber cement at a time.Reduced Dust Production for Improved SafetyThe 12-Inch PCD Fiber Cement Blade's notched design allows it to produce less dust than a similar continuous-rim blade. Coupled with the blade's thin-kerf, eight-tooth configuration and its PCD tips--which also contribute to its reduced dust production--this notched design helps keep your work site cleaner and safer.What's in the BoxIrwin Marathon 4935473 12-Inch Polycrystalline Diamond Fiber Cement Circular Saw Blade. From the Manufacturer The Irwin Tools 4935625 12-Inch x 8T polycrystalline diamond fiber cement circular saw blade with 5/8-Inch arbor is ideal for todays fiber cement building products. The polycrystaline diamond tips last 15x longer than traditional carbide tipped blades in fiber cement which makes for a more productive worksite by eliminating the need to change blades so often. The laser cut blade body is ground and hardened to make for a stronger tooth bond and a more accurate cut. The thin kerf and notched rim produce less dust than a continuous rim blade which makes for a cleaner and safer work environment. When working with fiber cement blades, longer life and less dust are a must and the Irwin PCD blade provides you with both. See more
Product Features
Polycrystalline diamond-tipped teeth will last up to 15X longer than standard carbide fiber cement blades.
Thin kerf blade produces less dust than continuous rim blades.
Ground and hardened plate body provides smooth and accurate cuts.
Customer Reviews
I used this blade with a corded SKIL 5280 7-1/4-Inch Circular Saw to cut backer board for a shower reno in my house. I cut mostly half inch and a few sheets of quarter inch Durock, total of about 12 sheets, but including a bunch of small pieces for a shower niche and a bench.I was on the fence about buying this because it's expensive (almost as much as the saw!) and because I had previously been able to do an adequate (but slow and painful) job cutting Durock using a razor knife (and a whole bunch of blades) on another job around the house. But I was looking for something that was (a) faster, (b) cut a cleaner edge and (c) didn't wear me out so much to use - so I took the leap.I'd say this blade fit all 3 counts.(a) It literally chews through Durock. Occasionally it'd hit a hard spot and would take a second to catch, but by and large the Durock was toast. It was really fast, it probably cut through a full 5' in maybe 10-15 seconds. This is several times faster than I can go with a razor knife (scoring, then cracking, then cutting again ...) - especially as those razor knife blades get dulled up after seems like just a couple cuts.(b) The edges were really clean. I clamped a guide board along the Durock to keep the saw straight, and it had absolutely no problem keeping straight. No waving edges to have to go back later and clean up in place. If you were really in a hurry, you could probably use it freehand, since it didn't struggle at all cutting the material. Overall those really clean edges made fitting them together much easier and greatly reduced the amount of time I had to spend scraping little protuberances to make all the sheets fit together.(c) I'm 39 - which I consider not real old, but also not real young, and anything I can do at this point to save my arm and shoulder some stress is welcome. This thing just took a lot of the effort out of the job. Hand cutting, especially with a dulled up razor, is something I'm happy to minimize. It just made it much less taxing of a job.The one blade lasted the entire job and I couldn't tell any difference in cutting from beginning to end. I'm assuming I'll be able to use it on my next project.There were a couple downsides:- It did make a lot of dust and blew bits of board off at high speed, and it was loud as all get-out. As others have said - wearing a mask, goggles and ear protection is a must. I did all the cutting outside the garage, I'm not sure I'd use it indoors unless it was really well ventilated.- It's expensiveOverall, I would definitely buy again despite my angst at the price point.
