Mahr Federal Indicators are extremely versatile precision measuring instrument to be employed in production and in inspection rooms.

• A complete product range of both Digital and Dial Indicators plus a wide range of accessories that offers the best solution for every measuring task
• All Digital Indicators have practical measuring functions and are equipped with a data output for easier measuring value evaluation
• Mechanical Dial Indicators possess a highly precise movement, also available are a shockproof and a waterproof version, etc.

1. Balanced (+) on right. Normally furnished on all Group 0, 1, 3 and 4 ANSI/AGD indicators only, unless otherwise specified*. Indicates an increasing value when contact is depressed as in comparison type O.D. snap and bench thickness gages.

Note: If Revolution Counter models are ordered, counter dial operates counterclockwise.

* Group 2 Indicators are normally furnished with continuous dial, revolution counter and tolerance hands.

2. Balanced (+) on left. Indicates decreasing values when contact is depressed as in comparison bore* and depth gages.

* Will vary as dictated by motion transfer design. Note: With Revolution Counter models, counter dial operates clockwise.

3. Continuous clockwise. Normally furnished on Long and Extra Long Range Indicators, unless otherwise specified. Indicates an increasing value when contact is depressed as in direct-reading thickness gages.

Note: With Revolution Counter models, counter dial operates counterclockwise.

4. Continuous counterclockwise. Indicates a decreasing value when contact is depressed as in direct reading slot, recess or hole depth measurements.

Note: If Revolution Counter models are ordered, counter dial operates clockwise