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Bore Gages for Small Holes

The Mitutoyo small hole bore gages feature interchangeable anvils to take highly accurate diameter measurements of bore holes. Models are available with or without a Mitutoyo Dial Indicator.

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Features & Benefits

The Mitutoyo direct measuring bore gage for small holes is available in two different ranges (metric and inch) to measure inside bore diameters with accuracy to +/-0.005mm. The bore gage comes with nine interchangeable anvils to measure several different bore diameters with the same gage. A two-point contact system detects geometry anomalies such as ovalness and taper.

  • Available with or without a Mitutoyo Dial Indicator
  • Available in Metric or Inch models
  • Metric models have ranges of 6-10mm and 10-18.5mm
  • Inch models have ranges of .24-.4″ and .4-.74″
  • Large, newly designed grips are easier to hold and reduces heat transfer from the operator for better accuracy
  • Models with dial indicators are fully protected by a rugged cover
  • Gage stem diameter is 8mm / .375″
  • Interchangeable anvils are constructed of alloy steel with carbide-tipped measuring faces for added accuracy and durability
  • Includes 9 anvils and 1 spacer
SERIES 511 Technical Data
Technology: Mechanical
Number of anvils: 9
Accessories: Accessories
Product List
Order No.: Product Image: Units: Range: Graduation: Accuracy: Repeatability: Dial Gage: Stem Diameter: Number of spacers: With Dial Gage Protective Cover (21DZA000):
511-204-20 - Metric 10 - 18.5mm 0.01mm +/-5µm 2µm 2046AB 8mm 1 Yes
511-205 Inch 0.4-0.74" - - - - 0.375" 1 No
511-206-20 - Inch 0.4-0.74" 0.0001" 0.0002" 0.00008" 2923AB-10 0.375" 1 Yes
511-207-20 - Inch 0.4-0.74" 0.0005" 0.0002" 0.00008" 2922AB 0.375" 1 Yes
511-209 - Metric 6 - 10mm - - - - 8mm - No
511-210-20 - Metric 6 - 10mm 0.001mm +/-5µm 2µm 2109AB-10 8mm - Yes
511-211-20 - Metric 6 - 10mm 0.01mm +/-5µm 2µm 2046AB 8mm - Yes
511-212-20 - Inch 0.24-0.4" 0.0001" 0.0002" 0.00008" 2923AB-10 0.375" - Yes
511-213-20 - Inch 0.24-0.4" 0.0005" 0.0002" 0.00008" 2922AB 0.375" - Yes
511-214 Inch 0.24-0.4" - - - - 0.375" 1 No
511-203-20 - - - - - - - - - -
511-201 - - - - - - - - -