Flat micrometer anvil
A flat micrometer anvil is a specific shape of anvil used in conjunction with a micrometer. The anvil on a micrometer sits opposite the spindle and is used to hold the object being measured in place. The flat micrometer anvil is perfectly flat all across its surface such that it lies directly on the object. Flat micrometer anvils are the most commonly used anvil shape and are applied when taking measurements of flat surface.