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21-893-3 SPI Hole Mike .425" - .500" w/ Cert

21-893-3 SPI Hole Mike .425" - .500" w/ Cert

  • Save $ 69.98

SPI Hole Mike 3-Point Internal Micrometer

Specifications Include...

  • 0.425" - 0.500" Measuring Range
  • 0.0001" Readings
  • 2.00" Measuring Depth
  • Setting Ring
  • Includes Certificate of Calibration
  • Includes Case

Features include...

  • Three point internal micrometer for precise, direct measurement of bore diameters.
  • Self aligning and self centering
  • Carbide measuring anvils
  • Suitable to measure to within .050" of bottom of blind hole, up to 4" capacity
  • Feelers taper toward the back for positive reading of the front edge
  • Ratchet stop provides uniform measuring pressure