The Claas 9075620 is an original equipment manufacturer (OEM) grinding stone designed for the knife sharpening devices of Claas Quadrant series square balers. This essential component ensures precise sharpening of baler knives, maintaining optimal cutting performance and efficiency. With an outer diameter of 150 mm, an inner diameter of 25 mm, and a thickness of 20 mm, this grinding stone weighs 0.5 kg, providing durable and reliable operation for agricultural machinery maintenance.