Service Standardized Hardness Test Block Lot -- 5 Blocks & Cases -- Diamond Tool

US $1800

  • Stevenson Ranch, California, United States
  • Jun 9th
Here are some vintage hardness test blocks along with a single calibration certificate (not sure which of these of any it goes with). See the marked notes on the cases in the third photo for the hardness, though this can no longer be verified. Each case includes one block. There are 3 round blocks of what appears to be steel and 2 rectangular of what appears to be brass. Some numbers are etched in the side of the blocks. The red foam inside the case is dry rotted and in some cases stick to the test blocks. Sold as is, so please ask questions before bidding.

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