This 15-piece set from Mr. Pen is an entry-to-mid-tier drafting kit that offers a comprehensive array of tools for the educational sector. The kit stands out by including specialized items like a 6-inch swing-arm protractor and a divider, alongside standard set squares and rulers. The carrying case is designed with a custom-fit internal tray, which prevents the tools from rattling and helps protect the sharp needle points of the compass and divider during transport.
The compass and divider are built with a zinc-alloy chassis and a nickel-plated finish to help resist oxidation. The transparent tools are molded from polystyrene, providing the clarity needed to see underlying graph points clearly. The rulers feature a hybrid of metric and imperial scales, making them suitable for various engineering and math curricula. To maintain consistent performance, users should occasionally check the center needle screw on the compass to ensure the friction hinge remains at the desired tension for precise circles.
For younger students who might benefit from a more flexible, drop-resistant material, the Fiskars Plastic Geometry Set is a great safety-focused option.
Keeping these multi-piece kits organized helps reduce clutter on study desks; see more options in ruler and protractor geometry sets.
