Engineered with etcheds duals scale graduations ( cm / inch) and reinforced edges, this pocket sized measuring tool withstands daily wears while maintaining calibration integrity Multifunctional Combination Tool Card integrates a protractor, ruler, and angled measurer in steel, perfect for engineering, DIYs projects, and educational applications High visibility etcheds markings and corrosionresistant stainless steel construction ensures longlasting accuracy across woodworking, technical drawing, and workshop environments for construction site angled verification, classroom math demonstrations, and home improvement projects demanding multi tool precisions Essential for architects verifying angled, student completing geometry assignments, and craftsmen requiring portable measurement, Manufacturer: Whoasyst