What are some other types of micrometers? Beyond the basic inside, outside, and depth micrometers, there are a number of specialized micrometers built for different jobs. Tube micrometers are utilized to measure the thickness of a pipe or tube, v-anvil micrometers can make evenly-spaced measurements around a circle, and universal micrometers are made to have interchangeable anvils in order to complete a wide range of potential measurements. Groove micrometers are put to use when you need to measure either the external or internal dimension of a groove, pitch-diameter micrometers are used to measure the height of the thread on a screw, and limit micrometers can ensure that a part is within the bounds of a particular tolerance. Finally, laser micrometers provide incredibly quick and precise measurements.