Dial Indicator Mitutoyos dial indicators have long been used by many of our customers. In full recognition of their needs, we have devoted ourselves to the research and development necessary to produce high-quality and high accuracy dial indicators. Due to the recent reacknowledgement of the importance of measurement technologies, the demands on dial indicators are many and varied: installation in measuring jigs, mounting in countless types of precision equipment, etc. We offer numerous models with various types of dial faces, measuring ranges, graduation styles and environmental resistance ratings. The stems, which ensure the xture reliability, and the spindles, which are the basis of accuracy, have excellent resistance against hard use thanks to the hardened stainless steel construction. 10 Micron resolution dial indicators have a grand gear made of stainless steel with high resistance to wear and deformation. one micron graduation dial indicators employ a sector gear made of a special alloy in order to further increase the resistance to wear. Stype dial indicators employ an Oring to ensure the air tightness between the outer frame and the crystal case in order to prevent water or oil penetration.