Mechanical Dial Indicators feature low friction mechanisms that react instantly to contact pressure for accurate displacement readings. Indicators have 2.25in (57mm) diameter dial faces, continuous clockwise dials with one hundred divisions per revolution, and a revolution counter. Backs rotate 90° to adapt to horizontal or vertical mounting positions.

Models with “B” suffix have brakes to hold maximum indicator needle positions.

Models with “C” suffix include a certificate of calibration.

Features:

Optimal for delivering fast, accurate displacement readings
Adaptable, 90° back adjusts to fit vertical and horizontal mounting positions

Included Items:

Mechanical Dial Indicator

Accessories:

Extended Contact Points in sizes from 0.5–2in adapt the unit to different configurations
HMA-338 Magnetic Gauge Holder secures indicator unit to surfaces

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Specifications

Attribute name	Attribute value
Range x Division	MA-330: 0.2 x 0.0001in MA-330B: 0.2 x 0.0001in MA-334: 1 x 0.001in MA-334C: 1 x 0.001in MA-334B: 1 x 0.001in MA-346: 25 x 0.01mm MA-346B: 25 x 0.01mm
Product Dimensions	2.25 x 2 x 5.5in (57 x 51 x 140mm) Dia.xDxH
Estimated Shipping Weight	MA-330: 2.0lb (0.91kg) MA-330B: 0.5lb (0.23kg) MA-334: 0.5lb (0.23kg) MA-334C: 0.5lb (0.23kg) MA-334B: 0.5lb (0.23kg) MA-346: 0.5lb (0.23kg) MA-346B: 0.5lb (0.23kg)

Product Q&A

Q: How are longer specimens extracted and the piston returned?

Specimens longer than 5in are extracted by repositioning the Adapter Ring after maximum piston travel, and the spring-loaded piston automatically returns to the start position when the release valve is opened.