Individual Radius Gauge, Range 3/8 in, Accuracy +/-0.002 in, Configuration 5 Convex & Concave Radii, Dimension Type Angle, Included Sizes 3/8 in, Number of Leaves 1, Size 2 1/2 in x 1/32 in x 2 7/16 in, Finish Satin Chrome, Maximum Measurement - Inch 3/8 in