This precision-engineered 30 cm wing compass is an essential tool for technical drawing, woodworking, metalworking, and leatherwork applications. The robust metal construction features adjustable arms that maintain accurate settings during use. The integrated pencil holder with a secure thumbscrew allows for precise circular marking and measurement. The wing design provides excellent stability and control while drawing circles or taking measurements. Perfect for craftspeople, technical illustrators, and professionals who require precise circular measurements and markings. The compass arms move smoothly and lock firmly in position, enabling you to create consistently accurate circles from small to large diameters. Its durable construction ensures long-lasting performance in workshop or studio environments. The traditional wing-style design has proven reliable for generations of technical drawing and craftsmanship. Ideal for both detailed technical drawings and practical workshop applications where precise circular measurements are essential.