Sine bars are used when a high degree of angular measurement accuracy of less than _________ is required.

In engineering metrology, what does the abbreviation PPG stand for?

What is the GO and NOGO size for a Snap Gauge used to check a shaft of size 25 ± 0.02 mm?

The algebraic difference between the actual size and the corresponding basic size is known as:

Sine bars are used when a high degree of accuracy of less than ______ is required for angle measurement.

The accuracy of measurement by a high-quality try square is approximately: