0 mm. Reading the cursors described in the previous section, the results are similar to 1.4 or 1.6 or 2.0.

What is the minimum count of screw gauges?

The minimum count formula for thread gauges is as follows:

• Minimum number of pitch = (pitch) / (number of divisions)
• Minimum Thread Micrometer Count = (1 mm)/(100) = 0.01 mm.

When was the micrometer invented?

The micrometer used with telescopes was invented approx. 1638 British astronomer William Gascoigne.