The accuracy of the framing square is around 0.0573 degrees. It contains a measurement roller on both sides. The smaller side has the outside gradation up to 8 inches & inside up to 6 inches. The larger side has an outside gradation is up to 12 inches & inside up to 11 inches. Through these, it represents a very accurate degree of accuracy. So, you don’t have to worry about any silly trouble while doing your work.