Squares Instrument Information
A tool, typically containing two arms that meet at a 90 degree angle, used for laying out and measuring squareness.

Common Uses
- Quick, semi-accurate verification of squareness on machined parts.
- Laying out machined parts prior to machining.
Common Types
- Speed Square
- Tri-Square
- Carpenter
- Framing
- Combination
- Granite
Measurement Parameter
- Squareness
Calibration Discipline
Calibration Equipment Used
- CMM