Depth Master Instrument Information
A stepped metallic instrument, where each step up is taller (as measured from the base) than the one previous in consistent intervals used for setting depth micrometer.

Common Uses
Setting depth micrometers.
Common Types
- Size (Commonly 1-6″ or 1-12″)
- Step Increments (Commonly 1/2″ or 1″)
- Number of Sides (1, 2)
Measurement Parameter
Depth
Gage Type
Tool Setting
Calibration Discipline
Calibration Equipment Used
- Universal Linear Measuring (ULM) System