3909MAC Dial Test Indicator with Dovetail Mount 12673

3808, 3809, 3908, 3909 Dial Test Indicators with Dovetail Mounts
Dial Test Indicator with Dovetail, 0.8mm Range, 0-40-0 1-9/16" Dial Face, 0.01mm Graduations, with Accessories, Case

The Starrett 3909 precise, high quality test indicator offers a full complement of standard features. Indicator includes two contact points, two dovetail clamps, swivel post holder, tool post holder, contact wrench and case.

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  • Three dovetail positioning mounts work with most existing test indicator accessories
  • Precision gear-driven design with smooth, jeweled movement
  • Contact point reverses automatically, always maintaining clockwise hand rotation
  • Contacts are frictionally adjustable and replaceable
  • Meets or exceeds ANSI/ASME accuracy specifications
  • High contrast, easy-to-read dials with a white background on inch reading and a yellow background on millimeter reading indicators
  • Narrow body for in reach ability
  • Satin chrome finish for durability


  • Made in America: No
  • Range (mm): 0.8mm
  • Graduations (mm): 0.01mm
  • Dial Reading: 0-40-0
  • Attachments: 2mm & 4mm contact points, 9.5mm & 4mm dovetail clamps, 4mm swivel post holder, tool post holder, contact wrench & case
  • Dial Color: Yellow 40mm Diameter


    Catalog 33 - Section 5 - Dial and Electronic Indicators and Gages

    We offer a variety of each of the major classes: mechanical dial, electronic display, lever style test and back plunger. Indicator requirements are very specific and Starrett offers everything you need: a broad line of each indicator type, an extensive range of accessories to configure and position the gage, and as needed, an indicator-based, custom engineered solution.

    Precision Hand Tools (Catalog 33)

    612 page catalog featuring precision hand tool, force measurement, vison systems, optical comparators, laser measurement, and flat stock.

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      Member of Kit
      Item #DescriptionPart No.QtyInformation
      1DIAL TEST INDICATOR,0-40-0, 40MM DIAM.3909MA1
      2•2MM BALL X 14.4MM(.567") LONG CONTACT46189-02
      3•8MM(.315") DIA. DOVETAIL LOCK PIN46174-01
      4•4MM (.157") DIA DOVETAIL LOCK PIN46176-01
      6METRIC DOVETAIL CLAMP- 4MM(.157") X 8MM(.315") REPLACEMENT PART)46191-01
      81MM BALL X 13.9MM(.547") LONG CONTACT46189-11