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Radius and Fillet Gauges

 Radius and fillet gauges are precision measuring tools used in various industries, such as engineering, manufacturing, and metalworking, to accurately determine the radius or fillet of a curved surface. These gauges are essential for quality control, dimensional inspection, and ensuring proper fit and finish in products.

A radius gauge, also known as a radius fillet gauge or fillet radius gauge, is a tool designed to measure the radius of an object or a specific feature on a workpiece. It consists of a set of curved blades or pins of various sizes, each with a specific radius marked on it. The blades or pins are typically made of hardened steel or other durable materials. To measure the radius, the blades are placed against the curved surface, and the one that matches the contour of the object or feature is selected, providing an accurate measurement.

Fillet gauges are specifically designed to measure the size of fillets, which are the curved transitions between two intersecting surfaces. Fillets are commonly found in machined components, weldments, and castings. A fillet gauge resembles a small ruler with stepped notches on its edge, representing different fillet sizes. By placing the notches against the fillet, the user can identify the closest matching notch, thereby determining the fillet size.

Both radius and fillet gauges are available in various shapes and configurations to accommodate different applications. They can be in the form of individual gauges or comprehensive sets, which cover a wide range of radius or fillet sizes. Some gauges have a lockable mechanism to secure the chosen radius or fillet size in place for ease of measurement.

These gauges are widely used in industries where precise measurements are critical, such as automotive manufacturing, aerospace, tool and die making, and general machining. They enable technicians and quality control personnel to quickly and accurately assess whether a component meets the specified radius or fillet requirements. This information is crucial for ensuring the proper fit and function of parts, especially in assemblies where tight tolerances are essential.

In summary, radius and fillet gauges are indispensable tools for measuring the radius and fillet sizes of curved surfaces. They provide an efficient and reliable way to verify the conformity of components to design specifications, contributing to the overall quality and precision in manufacturing processes.