A professional who inspects and adjusts gauges, measuring instruments, and testing equipment for conformance to blueprint specifications. Respnsibilities include:

• Verifies accuracy of gauges and measuring instruments, such as dial indicators, fixed gauges, height gauges, and electrical and functional gauges, using master gauges or master parts.
• Examines gauges or measuring instruments for wear or adjustment.
• Disassembles inaccurate or worn gauges and measuring instruments with handtools.
• Inspects parts for wear, warping, or other defects.
• Verifies dimensions of parts against blueprint specifications, using gauge blocks, micrometer, vernier height gauge, sine bar, bevel protractor, and optical comparator.
• Measures surface flatness and finish, using optical flats and profilameter.
• Computes unspecified dimensions and other data, using shop mathematics and trigonometry.
• Laps corroded or pitted surfaces.
• Reassembles gauge and adjusts stops and levers to specified settings.
• Inspects accuracy of new gauges and instruments for conformance to blueprint specifications before they are released for production use.