Part Modeling > Engineering Features > Hole > To Convert Hole Geometry
  
To Convert Hole Geometry
1. Select one or more simple holes in the graphics window, the Model Tree, or the Search Tool.
2. Right-click and choose Convert to Lightweight or Convert to Solid.
 
* When you convert a hole with children, the Children might fail dialog box opens. Click OK to continue hole conversion.
The hole geometry is converted.
 
* The solid geometry of a hole uses more memory than a lightweight hole. Having a large number of solid holes (for example, more than 3,000) can cause serious performance issues, to the point that the system can run out of memory. Make sure to take this into account when converting lightweight holes.