Micrometers Instrument Information
An instrument containing a calibrated screw on one end and a pair of movable jaws (or cylinders) on the other end. The calibrated screw is turned until the contact points touch the wall of the part being measured and a reading is shown on the measurement readout.

Common Uses
- Measuring the inside diameter of a machined part, such as a hole or a groove.
Common Types
- Readout Type (Vernier, Dial, Digital)
- Construction (Tubular, Anvil)
- Range
- Resolution
- Protection Rating
Measurement Parameter
- Inside Diameter (in, cm)
- Length (in, cm)
Calibration Discipline
Calibration Equipment Used
- Gage Blocks