Class ZZ Pin Sets & Libraries (Black Oxided)

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Black OX class zz gages are backed with the same 30 day guarantee as our premium grade gages, sold under the Meyer Gage brand that you’ve come to know and trust. These gages are offered at a price every shop can afford. Perfect for general shop floor use.

Black OX Class ZZ Sets & Libraries information & pricing


  • Black Oxide treatment
  • Class ZZ .0002″ tolerance
  • Box and gages clearly marked
  • No sharp edges
  • All gages 2” long
  • Your choice of plus or minus
  • Certificate of conformance to ANSI B89. 1.5-1998


  • Measuring hole sizes and depth
  • Checking locations
  • GO & NO/GO gaging
  • Inspect holes, or slots for pass / fail conditions
  • Checking micrometers and calipers


  • Black OX surface treatment
  • Centerless Ground
  • 10 micro-inch finish
  • Heat treated to 60-62 Rockwell C
  • English gage with .0002″ limit
  • Roundness Geometry .0001″ limit