IVY Classic 36030 Ripcross 7-1/4-Inch 24 Tooth Decking Carbide Circular Saw Blade with 5/8-inch Diamond Knockout Arbor, 1/Card Designed for smooth, efficient ripping and crosscutting of pressure treated lumber, Ripcross (Registered Trademark) Silicon coated thin kerf blade to reduce friction and residue build-up with anti kickback design ensuring consistent chip removal Alternate top bevel ground C3 modified tungsten carbide teeth Fully hardened blade with a Rockwell Hardness of 40-43 Arbor: 5/8-inch diamond knockout, Kerf: .079-inch, Hook: 20-degree