This standard specifies sizes for gauging in dimensional metrology.
DIN 2247-2:1989 history
2008DIN 2247-2:2008-07 Geometrical product specifications (GPS) - "NOT GO" plug gauges - Part 2: With rod gauge for holes over 40 mm up to 500 mm nominal diameter
2008DIN 2247-2:2008 Geometrical product specifications (GPS) - "NOT GO" plug gauges - Part 2: With rod gauge for holes over 40 mm up to 500 mm nominal diameter
1989DIN 2247-2:1989 NOT GO rod gauges over 40 mm up to 500 mm nominal diameter