Its thick edge can be used directly with the against the square for cross cuts or angled cuts using the etched protractor scale , let you quickly and accurately your cut lines on your stringers The Triangular metric ruler can be used as a protractor , miter , line scriber guide , framing square and a ruler , for ideal for all building and remodeling projects The Triangular ruler checking angles is quick and easy with clear and accurate scale , easy for you to read a wider base that provides stable grip on premium aluminum alloy , , wear resistant and You will get Triangular ruler , which features metric measurements with clear , enough for all building and remodeling projects , also woodworking hobbyists , artists & lover, Manufacturer: Watreketal