Dear Sir,
In ISO Iso Tolerances for Holes ( ISO-286-2) The Nominal Hole size is 80 mm, for H7 which will be the tolerances (0 to +35) or (0 to +30) because in both hole groups
50 - 65 65 - 80and
80 - 100 100 - 12080 is available.
Best regards,
Shafi