Mitutoyo 102 Series Standard Outer Micrometer

The Mitutoyo M320-25AA Measuring Range 0-25 mm Standard Outer Micrometer 1994596 is a precision measuring instrument widely used in various industries and scientific fields for highly accurate length measurements. It belongs to the class of calipers, but it offers significantly higher precision due to its sophisticated design and fine adjustment capabilities. The primary purpose of a micrometer is to determine the distance between two opposing surfaces with utmost accuracy, typically to the sub-millimeter or even sub-micron level. The main components of a micrometer include a frame, an anvil, a spindle, a thimble, and a ratchet. The frame provides the structural stability and houses the internal components. The anvil and the spindle are two flat and parallel ends that move towards each other to measure the dimension of the object being measured. The thimble is connected to the spindle and has fine markings that enable precise measurements. The ratchet ensures consistent and uniform application of pressure, preventing over-tightening and potential damage to delicate objects. To measure an object's dimension, the micrometer is placed around the specimen, and the thimble is rotated to bring the anvil and spindle into light contact with the surfaces. The user then turns the ratchet until a gentle but definite resistance is felt, indicating proper contact. The reading is taken from the thimble scale and the sleeve scale, providing the final measurement.