What measurement tools would you use to verify external dimensions within a few thousandths of an inch, and when would you use each?

• A. A micrometer for precise measurements; a vernier/digital caliper for quick checks and larger tolerances.
• B. A ruler for precise measurements; a tape measure for quick checks.
• C. A depth gauge for all measurements; a protractor for angles.
• D. A torque wrench for length; a feeler gauge for length.

Answer: (A)