The Joist 3077 disc blade is a high-quality replacement part designed for agricultural implements. This genuine Joist blade features a 508mm (20-inch) outer diameter and a robust 4.5mm thickness, ensuring durability and efficient soil engagement. It is equipped with a 41.275mm (1.625-inch) center hole and four mounting holes arranged on a 95.25mm (3.75-inch) bolt circle, making it suitable for various seeding and tillage applications. Weighing approximately 4.76 kg (10.5 lbs), this disc blade provides reliable performance for maintaining optimal field conditions.