The AvantiPRO 7-1/4" x 6 tooth carbide tipped saw blade has durable construction carbide for longer cutting life. 5/8" arbor with diamond knock-out. Approved for Hardie fiber cement board as well as all others. Generates 40% less respirable dust than leading competitor in independent laboratory testing. TiCo carbide is 31% harder and more wear-resistant than the leading competitor and lasts up to 3X longer than generic carbide blades. Only carbide tipped fiber cement blade featuring triple chip grind for less dust and longer life. Thin kerf requires less power from the saw and causes less user fatigue and ultimately extends the life of the saw. Features laser cut stabilizer vents for reduced vibration and precise cuts.