Radius Gauge / Fillet Gauge
Components are machined to have curved formation on the edges or at the junction of two steps. Accordingly they are called radius and fillets. The
size of the radius is normally provided on a drawing. The gauges used to check the radius formed on the edges of diameters are fillet and the gauges used to check the fillets are called fillet gauges. Fillet gauges are also called as Radius gauge.
Radius Gauges are made of hardened sheet metal each to a precise radius. They are used to check the radii by comparing the radius on a part with the radius of the gauges.
The radius and fillet gauges are available in sets of several blades which fold into a holder when not in use.