ngle plates provide a convenient and practical means of clamping and holding work in a vertical position. Their outstanding finish and flatness make them very compatible for use with granite surface plate accuracies. Our angle plates are available with either two or four finished faces. The two-face angle plate has the bottom and the adjacent square face finished flat and square to one another. The four-face is similar to the two-face, but has the two adjacent sides finished flat and square to the other two faces, as well as being parallel to each other. The laboratory grade AA has a tolerance of .000025” per 6” and the inspection grade A has a tolerance of .000050” per 6”.
