This Radius Stencil is a precisely engineered 3D printable tool designed to facilitate the marking and measurement of circular arcs. Equipped with clearly labeled radii ranging from R3 to R18, it is ideal for engineers, designers, and hobbyists working on mechanical projects or complex models. Its sleek, gear-inspired design not only offers an attractive appearance but also ensures durability and precise alignment. Whether you are drafting blueprints, creating part prototypes, or simply needing a quick radius reference, this stencil delivers consistent and reliable results every time. Lightweight, user-friendly, and built for practical applications, it is the ultimate tool for anyone who demands accuracy in their work.