GD&T in precision engineering: using slots in precision location

GD&T Tips Geometric Dimensioning Help Files - Tec-Ease gd&t slot dimensioning Full-Length Dimensioning: One way of describing a slot is by specifying its full length alongside its end radii This is the preferable option when it is gd&t slot dimensioning I explain how position tolerances work in GD&T according to ASME

lucky fishing slot But note that features are always things that we can touch So the hole is a feature The axis of the hole is not a feature Likewise a slot is