Designed for control and calibration of angle measuring devises, as well to check the angles of products. Angular measures have holes for attaching accessories, tightening tiles in blocks. Nominal dimensions of working angles. Type of angle block. 10°; 11°; 12°; 13°; 14°; 15°; 16°; 17°; 18°; 19°; 20°; 21°; 22°; 23°; 24°; 25°; 26°; 27°; […]