| Name | Value | Description |
| HoleSegmentTypeCone | 1 | Hole segment is conical in shape. |
| HoleSegmentTypeCylinder | 0 | Hole segment is cylindrical in shape. |
| HoleSegmentTypeFlat | 2 | Hole segment is flat in shape, i.e. planar and perpendicular to the hole axis. |
| HoleSegmentTypeTorus | 3 | Hole segment is toroidal in shape. |