A machinist such as a lathe operator would use a micrometer caliper for precise measurements of the product he is machining, Also used by designers of precision parts and programmers of precision machines.
micrometer conforms to abbe's principle because the graduations are located along the same axis as the measurement while vernier caliper does not because the graduations are not on the same axis as the measurement.
A vernier caliper has a moving jaw and a fixed jaw. The moving jaw has marks to set against the ruled divisions on the stem of the fixed jaw. A micrometer caliper has a micrometer clock gage whose hand turns to provide the fine divisions added to the marked scale.
A meter rule is apropriate as it can measure up to unlimited meter while micrometer is suitable for diameter since it has a high degree of accuracy to small diameters in millimeters.
Calibrating micrometers: For quick reference the supplied test piece can be used. For calibrating a micrometer, gauge blocks are used.
A micrometer is used to measure very small distances.
An engineer or scientist.
I would use a micrometer. A caliper would do as well.
Micrometer to measure the accuracy of 0.01 mm. Caliper to measure with accuracy of 0.1 mm is used.
Micrometer or vernier caliper
Caliper. Micrometer
With a micrometer (caliper) To measure the thinkness you use mm's
A vernier caliper would be a good way, unless you need a more accurate measurement, in which case I might use a micrometer caliper.
A micrometer caliper is a measuring device for finding very exact measurements of an item. The least count of a micrometer caliper in millimeter is 0.02.
A meter stick caliper is very large and would make general measurements. A micrometer caliper is much smaller and can be used to make much smaller measurements.
micrometer is more occurate.
If you have to measure the pencil to a couple decimal places i would suggest a micrometer and a dial caliper.
Caliper