What is the term for the longest movement possible between the spindle and anvil in a micrometer?

The term for the longest movement possible between the spindle and anvil in a micrometer is known as the "Range." In a micrometer, the range determines the maximum distance that the spindle can move toward or away from the anvil, allowing for various measurements to be taken.

Understanding the range is essential for ensuring that the micrometer can accurately capture the dimensions of the objects or materials being measured. This capability is critical in precision machining and metalworking processes where exact measurements are paramount. The range facilitates not only measuring small dimensions but also accommodates slightly thicker materials, depending on the design of the micrometer.

Other terms such as depth, height, and span may describe measurements or components but do not specifically refer to the longest movement between the spindle and the anvil in this context. Therefore, "Range" is the accurate terminology used to identify this specific aspect of micrometer functionality.