Mitutoyo ARK-500 Rockwell Hardness Tester


The ARK-500 is a digital hardness tester designed for testing Rockwell hardness on sample pieces.
It uses an elevating handle to raise and lower the spindle efficiently.


  • 180mm Ø Table, 64mm Ø Table,40mm Ø Avnil with large groove
  • 37mm Ø Anvil with small groove, 2 Diamond Indenters, 1 Ball Indenter
  • Square test block - 90.28 HRBW (ASIM= +/- 1.0), 
  • Circular test block - 61.98 HRC (ASTM= +/- 0.5)

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