Dorsey Metrology countersink and chamfer gages offer fast, accurate measurement of the top diameter of tapered holes, countersinks, chamfers center drill holes, valve seats, etc. and are used for inspection of a large variety of part applications. Models are available to measure the major diameter of an I.D. countersink or the minor diameter of the O.D. chamfer in various gage ranges and in two angular styles. Readings are available in inch, metric or digital indicator formats.