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Old May 21, 2011, 03:25 PM
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Mnpctech Mnpctech is offline
Join Date: Oct 2009
Location: Minnesota
Posts: 985

A Micrometer is widely used for precise measurement of small distances. I use a Micrometer to measure the thickness in materials like sheet metal or aluminum. You can also use a Micrometer to measure the diameter of a cylindrical shape or sphere.

Types of Micrometers:

Outside micrometer
(aka micrometer caliper), typically used to measure wires, spheres, shafts and blocks

Inside micrometer
, used to measure the diameter of holes

Depth micrometer
, measures depths of slots and steps.

This is a Starret T436XRL-9 Outside Micrometer from Amazon

This is a Metric "Caliper" style micrometer made by “Draper.” It’s manufactured from hardened stainless steel. Slider displacements are amplified by a rack and pinion mechanism and indicated on the dial. Four way measurement: internal, external, depth and step. Reading 0.02mm. Slider has lockscrew function. Display packed in plastic storage case.
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