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The Starrett 78XTZ-750 Bore Gage Internal Micrometer features extended travel, reducing the need to exchange anvils. The ground contact points seat the internal micrometer faster and more accurately than the spherical contacts found in other gages. The rugged and accurate internal micrometer is available individually or in economical sets from .040-12"/ 1-300mm. This model has a measuring range of 5/8 to 3/4" with .00025" graduations and approximately 2-7/16" measuring depth.
  • Range: 5/8 to 3/4"
  • Graduation: .00025"
  • Type: Internal
  • Accuracy: .00015”
Features: Wide measurement range without changing anvils, Tungsten carbide measuring faces on all 3-point heads above 1/2" (12.5mm), Ratchet stop ensures consistent measurements, Self-centering contacts for true readings, Blind bore measuring capability above 1/2" (12.5mm) diameter, Extensions available up to 6" (150mm) for deep hole measuring, Setting rings included, Depth stop/collar also available for .080"-.250" (1-6mm) range, Each micrometer bore gage is furnished in a case, complete with setting ring, contacts, wrenches, and instructions

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