The Diablo 7-1/4 in. x 4-Tooth Polycrystalline Diamond-Tipped Circular Saw Blade features an abrasion-resistant polycrystalline diamond-tipped blade. It was specially formulated to combat the highly abrasive properties of fiber cement products to give you increased cutting life. The Perma-SHIELD non-stick coating protects the blade against heat, gumming and corrosion. This blade was designed to fit all 5/8 in. arbors.