The SHINWA TRY Squares allow for marking and checking 90 angles, ensuring accurate edges and corners for precise wood joinery. Therefore, they can be used as a guide for marking straight lines perpendicular to an edge or surface, and are also beneficial in checking for flatness on a workpiece. The SHINWA TRY Squares are available in 4.5 cm, 6 cm, 7.5 cm and 9 cm.
