1.        micrometer head
2.        external digital micrometer
3.        micrometer with dial comparator
4.        micrometer with counter
5.        micrometer with electronic digital display
6.        small anvil micrometer
7.        point micrometer
8.         sheet metal micrometer
9.         tube micrometer
10.       blade micrometer
11.       odd fluted micrometer
12.       depth micrometer
13.       internal micrometer
14.       single-body internal micrometer
15.       dail internal micrometer
16.       three point internal micrometer
17.       three point internal micrometer
18.       inside micrometer