Oshlun SBH-072504 7-1/4-Inch 4 Tooth PCD Saw Blade with 5/8-Inch Arbor, Diamond Knockout, for Fiber Cement Fits: Corded and Cordless Saws Thin Kerf for Fast Cuts and Less Dust Polycrystalline diamond tips (pcd) Designed for James hardier products, fiber cement products, and certainteed weatherboards Flat top grind