Edge Chamfer
Add a chamfer to one or more edges.
1. Make sure that 
Sets is selected.
Sets is selected.2. Select an edge to specify the first reference.
3. Press CTRL and select additional edges as required.
4. To change the chamfer dimension, type a number in the D box, in one of the following locations.
◦ The on the Edge Chamfer tab under Dimension Scheme.
◦ In the table cell in the Sets tab.
5. Click OK.