Starrett Radius Gage Reference Information

Radius Gage Application Shot

Starrett 167 Individual Radius Gages

FIVE DIFFERENT GAGING SURFACES –
Ideal for Checking Convex and Concave Radii of All Types

Radius Gage Example 1

Radius Gage Example 2

Radius Gage Example 3

Fig 1. Checking concave (internal) radius with 90° arc. Also checks if sides are tangent to radius and 90° to each other

Fig 2. Checking concave (internal) radius with arc up to 180°. Also will check radius shown in Fig. 1 but not relationship of sides.

Fig 3. Checking convex (external) radius with 90° arc. Also checks if sides are tangent to radius and 90° to each other.


Radius Gage Example 4

Radius Gage Example 5
Fig 4. Checking convex (external) radius with arc of 90° or greater, or radii with sides as shown which would interfere with gage used as in Fig. 3.

Fig 5. Checking convex (external) radius with arc of 180°; also less than 180° if sides of radius offer no interference.

178 Radius Gage Surfaces

178 Radius Gage Lineart

272 Radius Gage Surfaces

272 Radius Gage Lineart
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