I need some help with purchase of a micrometer?

Question

i need to measure the center of a circular piece which is ca. 9mm thick. the outer edge is thicker ca 20mm. i also need to measure at the center. The piece has about a 50mm diameter

Looking at micrometers, the specs often say min and max range. When the min is not zero will the micrometer not close tightly? i need to measure < 9mm...

so i need a micrometer that will measure from about 8mm - 20mm and has a jaw depth of 60mm....

thanks for any help

Answer 1

Try these guys...I guarantee they will have what you need.

http://catalog.starrett.com/catalog/cata...