Use the Corners tab of the Create Feature dialog to fillet the corners of a feature.
Internal corner radius — Enter a value to specify the fillet radius for the internal corners of the feature.
Pocket feature with no filleted corners:
Pocket feature with internal fillet corners:
External corner radius — Enter a value to specify the fillet radius for the external corners of the feature.
Pocket feature with no filleted corners:
Pocket feature with external filleted corners: