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Unit 6 of 17

Measure Everything

How a factory proves every part is right: four checkpoints, callipers and micrometers, go/no-go gauges, profiles, calibration, destructive testing, validation and what happens to a bad part. Then find out how oversize screws passed inspection.

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8 hands-on lessons, then a case · about 30–45 minutes

A micrometer, a calliper, a thread gauge and gauge blocks

What you’ll learn

  1. 01Four checkpoints
  2. 02Calliper and micrometer
  3. 03Go or no-go
  4. 04Profile on screen
  5. 05Trust the instrument
  6. 06Break it on purpose
  7. 07When you can’t inspect
  8. 08When a part fails