How to use a Micrometer Screw Gauge
- Open the micrometer by turning the thimble or ratchet.
- Place the object to be measured between the spindle and anvil.
- Close the spindle by turning the ratchet, not the thimble. The ratchet prevents excess pressure on the object being measured, so you don’t squash it and get a false reading.
- Now read the scale.
How to use Vernier Calipers
- Unlock the lock screw and press the thumb screw down. Open the jaws.
- Close the jaws around the object you want to measure or, for inside measurements openthem until the fill the gap you wish to measure, or insert the depth rod into the hole you wish to measure.
- Tighten the lock screw so that the jaws do not move.
- Now read the scale.
READ: What Is Vernier Caliper? Principle Of Working Of The Vernier Scale
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