Bosch CB704FC 7-1/4 In. 4 (-PieceD) Tooth Fiber Cement Circular Saw Blade for Standard or Wormdrive Saws The professional choice for cutting fiber cement material Polycrystalline diamond tips for maximum life and dependability Thin kerf, fully hardened body for fast, accurate results Anti-friction coating 5/8" arbor with diamond knockout Patented C-3 Dyanite carbide teeth are diamond ground to be precision sharp from the start and stay sharp up to 6X longer than standard carbide Impact resistant tri-metal shims between each carbide tip and the blade act as shock absorbers in tough applications A fully hardened thin kerf plate means less material is removed which allows for a faster cut while still remaining straight and true Expansion slots reduce blade warping