Correct option is C
A
depth micrometer is specifically designed to measure the
depth of recesses, holes, slots, or steps. It is ideal for measuring
recess height as it accurately determines the vertical distance from a reference surface to the bottom of the recess.
Key Features of Depth Micrometer:
·
Flat Base:
· Provides a stable reference point on the surface.
·
Adjustable Spindle:
· Measures depth by extending a precision spindle into the recess.
·
Applications:
· Used for measuring
recess height, hole depth, grooves, and steps.