Specifically designed for single sheet cuts of fiber cement material. Shoulder design prevents overfeed and allows for consistent chip removal. Cleaner, faster and more durable than standard carbide tipped blades. Made of hardened and tempered steel for long life. C4 carbide tips for same Fibercut performance as Irwin's diamond tooth, but for single sheet cuts only. Never use to cut stacks; to do so will cause the blade to dull immediately. Square tooth design for heavy-cutting conditions.