Protractors Instrument Information
A measuring instrument, typically made of transparent plastic or glass, used for measuring angles.

Common Uses
- Measuring finished angles on machined parts.
- Laying out machined parts prior to machining.
Common Types
- Adjustable vs. Non-Adjustable
- Material (Plastic, Glass, Steel)
- Configuration (Semicircular, Circular, Military, Bevel, Optical Bevel)
Measurement Parameter
- Angle (Degrees, Minutes, Seconds, Radians)
Calibration Discipline
Calibration Equipment Used
- Angle Blocks