Junction Tool Options

Select an option from the Junction tool in the Create group on the Sheet Metal tab:

Bend	A traditional, circular bend between two sheet metal walls.
Full Overlap	One wall overlaps the other.
Partial Overlap	One wall overlaps the other halfway.
No Overlap	The walls meet but do not overlap.
Sharp	Removes rips and bends from the geometry and returns it to a shell, where there is no inside or outside radii. (You can also rotate a 180° "hem" to create a 90° flange.)
Flange	One side of the junction is bent and the other is straight. Use Reverse to change the bent and straight sides.
None	The junction will no longer be recognized by SpaceClaim.

The junction type you select is saved as the default for the session, so any junctions created by Pull will be this junction type.