2012

If you select a 3D solid, you can select multiple edges, but you must select the
edges individually.
Enter fillet radius <current>: Specify a distance or press Enter
Select an edge or [Chain/Loop/Radius]: Select edge(s), enter c, l, or r
Edge
Selects a single edge. You can continue to select single edges until you press
Enter.
If you select three or more edges that converge at a vertex to form the corner
of a box, FILLET computes a vertex blend that is part of a sphere if the three
incident fillets have the same radii.
Chain
Changes from selection of single edges to selection of sequential tangent edges,
called a chain selection.
434 | Chapter 2 Commands