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Starrett - Small Hole Bore Gage Set - Flat Bottom (.125-.500" / 3.2-12.7mm) - S831EZ

Manufacturer: Starrett
Item Number: S831FZ
starting at $171.00

Starrett - Small Hole Bore Gage Set - Flat Bottom  (.125-.500" / 3.2-12.7mm) - S831EZ

  • These small hole gages with the gaging surface of a half-ball with a flat bottom
  • This permits use in even the most shallow holes, slots, and recesses
  • Set of four (4) included Hardened-ball measuring surface with two-point contact
  • Radius on each gage is less than the minimum diameter to be measured, which provides the two-point contact necessary for maximum accuracy
  • Smooth,sensitive adjustment for better feel, giving more accurate measurements
  • The adjustment of the gage beyond their range is restricted by a safety stop that prevents breakage
  • Accurate measurements are obtained by slightly "rocking" these gages in the hole to be measured. This will guarantee contact at the true diameter.
  • The final size is then obtained by measuring over the ball contacts with a micrometer