HEIDENHAIN IK 5394-3D - Manual (Page 366)

5-6
Chapter 5 Tolerancing & Templates
Step 3
Type the nominal X and Y values for your part in the boxes as shown.
Step 4
Enter the specified diameter as shown.
Step 5
Type in the nominal + and nominal - values for your feature as shown.
NOTE
Nominal + and - values are the same as the tolerance value for
the feature. For example, if a feature has a tolerance of + or -
0.006 inches then the nominal + and nominal - values are 0.006
inches.
CAUTION
Enter tolerance values in the appropriate units of measurement.
For example, if you are measuring in metric (mm) enter tolerance
data in metric (mm).