This tool deactivates the selected sheet metal model and causes the sheet metal part to be treated like any non-sheet metal solid part. This allows you to perform post-fabrication operations on it, such as drilling at an angle through a face, welding corners, and adding form features and custom FeatureScript features.

Leaving the sheet metal model unfinished (active) causes the sheet metal parts to be treated as sheet metal. If you do not intend to perform post-fabrication operations on the sheet metal model, the Finish sheet metal model feature is unnecessary.