What's New: Creo Parametric 4.0 > Part Modeling (Sketcher, Part, Creo Flexible Modeling) > Enhanced Hole Tool
  
Enhanced Hole Tool
Hole placement and drilling direction is defined with more flexibility.
User Interface Location: Click Model > Hole.
Release: Creo Parametric 4.0
Benefits and Description
You can watch a video that demonstrates this capability.
The Hole tool supports additional placement situations. You can place a hole using an axis or point and a surface as references, even if the conditions listed below exist:
The axis is not normal to the surface.
The point is not on the surface.
In addition, you can define the orientation of the hole regardless of how the hole is placed. When placed on non-axial references, you can specify the hole orientation. The hole axis can then be defined to be parallel or perpendicular to the selected reference orientation.
Holes can be created with top clearance. The diameter of the hole, countersink, or counterbore is used to create a cylinder that cuts through the solid geometry. This avoids situations where holes are partially or totally buried in the solid geometry. You can control the default top clearance with a configuration option.
Hole reference pattern capabilities support hole orientation references together with placement references. As a result, you can create hole reference patterns by driving placement and orientation for each pattern member.