Livestock judging students with knowledge of wool and wool judging are usually more capable sheep judges. There are six Blood Grades of wool. Each grade is determined by the diameter of the fiber. Another system, called the Spinning Count, is used to identify fiber fineness. This system is more exact, as each term refers to a narrow range of fineness.
Grades are extremely important to the wool industry.
Each type of wool fabric requires a different grade or blend of grades. Therefore, each grade has a different price value. Each breed of sheep normally produces specific grades of wool. For example, the Rambouillet breed should have a spinning count grade of 64's to the finer 80's. When you judge sheep or a fleece, look for uniformity of fiber diameter.