D 20 KAU-20 D 20 KMU-20 D 20 L 1/2AF D 20 L 1/4AF D 20 L 11/32AF D 20 L 3/16AF D 20 L 3/8AF D 20 L 5/16AF D 20 L 7/16AF D 20 L 7/32AF