Holes are pick and place features with circular cross-section.
Holes remove material from the model.
You can create couple of types of holes. In this tutorial you can learn how to Create Simple Straight Holes, Standard Holes and Sketched Holes. I will focus on hole placements (Linear, Radial, Diameter and Coaxial Placement) and Depth Options.
... or try to check - Basic tutorial for Creo 4.0: http://amzn.to/2pFXqSs
Best Regards,
Vladimir Palffy
