Modifies the position and orientation of one or more selected faces so that they are concentric related to a target face on the part. You can use the options on the command bar to specify how you want the selected face to geometrically relate with the target face.

Makes the seed face (1) concentric with the target face (2).

The concentric relationship is persisted by default. You can turn the persist option off while in the command.

You can choose the concentric command first. Then select the seed face(s) and target face.

You can also create the seed select set first and then choose the concentric command. Then select the target face.