The Case-IH 998866R3 is a genuine OEM disc harrow blade designed for optimal soil tillage. This durable blade features a 20-inch (508 mm) diameter and a thickness of 5 mm, ensuring robust performance and longevity in demanding agricultural conditions. It is equipped with a 1-1/2 inch (38.1 mm) square axle hole for secure mounting on compatible Case-IH disc harrows. This high-quality component is essential for maintaining the efficiency and effectiveness of your tillage equipment.