36.2 C.S.A. B97-1 1963 LIMITS AND FITS(REWORK)
Five types of fits are allowed, with a variety of classes
This system is hole based (it uses the "H" hole)
There are 22 diameter steps from 0" to 200"
A fit is classified as a grade of "H" hole and a grade of shaft
To go on further with a more complicated example, consider the hole shaft pair with a bushing