Product details:
Adjustable thread ring gage, go, class 2a, thread size m12.0-1. 75, 6g, material tool steel, outside dia. 1-3/4 In, overall thickness 7/16 in, thread length 9/16 in, tolerance class x, includes certificate of accuracy traceable to nist adjustable thread ring gagesuse to inspect externally threaded product to assure assembly of mating parts and to verify min./max. Pitch dia. Limits. Sae gages meet asme b1.2 Standards. Metric gages meet asme b1. 16m standards.