830D Small Hole Gage 53079

The Starrett 830 Small Hole Gage is exactly the same as the 831 Series except that all gages are only 2" (50mm) long, making them convenient to use in close quarters. .300-.400" (7.6-10.2mm) Range, 2" (50mm) Length.

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  • Ideal for accurately measuring small holes, slots, grooves, and recesses
  • Precision Ground Radius on each gage provides two-point contact for maximum accuracy
  • Used for general work
  • Convenient to use in close quarters
  • Permits use in shallow holes, slots, and recesses
  • Well balanced
  • More accurate measurements
  • Hardened-ball measuring surface with two-point contact
  • Half-ball with a flat bottom
  • Gages are only 2" (50mm) long
  • Smooth, sensitive adjustment
  • Adjustment of the gage beyond their range is restricted by a safety stop that prevents breakage


  • Range (in): .300-.400"
  • Range (mm): 7.6-10.2mm
  • Length (in): 2"
  • Length (mm): 50mm


    Member of Kit
    Item #DescriptionPart No.QtyInformation
    10BALL END, SHORT TYPE08113-01
    20ROD, ADJUSTING08125-01
    30RING, RETAINING, .116X.166X.02518292-01
    40NUT,#1-64 ADJ ROD18295-01