Circular Saw Blade, Series James Hardie, Blade Dia. 7 1/4 in, Max. Blade Speed 12,000 RPM, Arbor Size 5/8 in, Arbor Shape Round, Diamond Knockout Yes, Number of Teeth 4, Max. Cutting Depth 2 3/8 in, Primary Material Application Fiber Cement, Materials Fiber Cement, Width 0.071 in, Tip Material Poly-Crystalline Diamond (PCD) Tipped, Hook Angle 10 Degrees , Tooth Grind TCG, For Use With Saw Type Circular Saws, Blade Type Fiber Cement, Plate Thickness 0.051 in, Application Construction