RADIUS MEASUREMENT:

Radius measurement methods:

Radius measurement using surface plate and rollers. (external radius)

Radius measurement of concave surface (internal radius)

Radius measurement using surface plate and rollers (external radius):

1.   Surface plate

2.   Two rollers

3.   Vernier caliper

4.   C- Clamp

Radius measurement of concave surface (internal radius):

1.   Depth micrometer

2.   Slip gauges