precisions with our 550mm Protractor and Marking Ruler, tool for accurate measurements and angles Crafted from carbon steel, this multifunctional instrument features a graduated guiding ruler designs for seamlessly measuring and marking tasks Suitable for engineers, architects, carpentry, enthusiasts, and students, this measuring tool is practical for anyone involved in detailed drafting or constructions work With its easy to use, this measuring ensures that every cut, join, and angles is executed to perfections Whether on a bustling constructions site, in a creative workshop, at school, or simply handling projects home, this protractor and ruler in any environment requiring precise angulars measurement, Manufacturer: Kaeltsyn