New thread gage, M20-2.50 6G stl go/nogo ring set

What is for sale: New thread gage, M20-2.50 6G stl go/nogo ring set

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This is a Vermont Gage part number 362146530.
This thread gage was purchased new within the last three years, but never used. It includes the original box case as well as the gage. The price is approximately half the current list price for a new gage.
Item includes original Vermont Gage certificate of accuracy, with an ISO 17025 calibration system.