Hitachi 18008 Hitachi's new Fiber Cement Blade features polycrystalline diamond technology that provides more durability and a longer cutting life than other diamond or carbide tipped blades. The 7-1/4-inch polycrystalline blade is a diamond powder made from graphite, and is the only type that possess self-sharpening properties. This blade is ideal for ripping, crosscutting, and mitering in fiber cement boards and siding.
Hitachi 18008 Hitachi's new Hardie-Blade features polycrystalline diamond technology that provides more durability and a longer cutting life than other diamond or carbide tipped blades. The 7-1/4-inch polycrystalline blade is a diamond powder made from graphite, and are the only type that possess self-sharpening properties. Perfect for multi-plank cutting, this saw blade can cut up to 5 planks at once, and ensures over 1,000 cuts per blade.

The Hitachi 18008 4-Teeth Polycrystalline Diamond 7-1/4-Inch Dry Cutting Hardiblade Saw Blade is designed for cross-cutting, ripping and miter of fiber cement board, siding and trim. With polycrystalline diamond teeth and the strength of graphite, this blade withstands years of repeated use and outlasts traditional blades. Polycrystalline gives saw blades (and some router bits) a sharper, longer-lasting tip. This blade is designed for use with James Hardie Building Products, such as HardiPlank and HardiBoard. With 4-teeth, a .087-inch kerf width, 5/8-inch arbor and the strength of polycrystalline, this 7-1/4-inch blade delivers smooth rapid cuts, up to 5-planks at a time. The Hitachi 18008 Polycrystalline Diamond 7-1/4-Inch Dry Cutting Hardiblade Saw Blade is warranted to the original purchaser to be free from defect in materials and workm anship for a period of 30-days from the original purchase date. Every Hitachi accessory is designed to the highest standards and is rigorously tested for both performance and durability. Since its inception, Hitachi has pioneered innovative technologies that have improved the quality of craftsmanship worldwide. Hitachi is a leader in power tool research and development and has achieved many firsts in the power tool industry. Today, Hitachi continues the tradition of innovation and engineering with new features in addition to classic quality.