The Feature Callout tab specifies the hole, slot, and thread depth properties that you want to extract and display in dimensions and annotations. These annotations include hole callouts, feature callouts, balloons, and hole tables.
The Feature Callout tab is available in the Dimension Style dialog box, the Dimension Properties dialog box, and in the Callout Properties dialog box.
Holes
Simple
Displays callout data for all simple holes.
Counterbore
Displays callout data for all counterbore holes with flat bottoms.
Countersink
Displays callout data for all countersink holes.
Counterdrill
Displays callout data for all counterbore holes with angled bottoms. These are defined in the part model using the V bottom angle check box in the Hole Options dialog box.
Simple (threaded)
Displays callout data for all simple threaded holes.
Counterbore (threaded)
Displays callout data for all counterbore threaded holes.
Countersink (threaded)
Displays callout data for all countersink threaded holes.
Counterdrill (threaded)
Displays callout data for all threaded counterbore holes with angled bottoms. These are defined in the part model using the V bottom angle check box in the Hole Options dialog box.
Slots
References information for simple slots and counterbore slots.
Slot
Displays callout data for slot features.
Counterbore Slot
Displays callout data for counterbore slot features.
You also can display simple and counterbore slot length using these Feature Reference buttons on this tab:
Path Length 
, which is sum of the lengths in the slot sketch.
Overall Length 
, which is the same as the path length for slots with flat ends, plus the slot width for slots with arc ends.
Symbols and Values
Opens the Select Symbols and Values dialog box for you to generate the appropriate symbols or model-derived values without having to type the property text codes yourself. Examples of the types of symbols you can select include ± (plus minus), ° (degree), and Ø (diameter). Examples of model-derived values include hole references, bend data, and weld beads.
Special Characters
Specifies mechanical font characters for the text fields. The available special characters are diameter, square, counterbore, countersink, depth, initial length, arc length, plus/minus, degree, between, statistical tolerance, and carriage return.
Feature Reference
Specifies hole, slot, and thread reference attributes for the text boxes. The available attributes are Size, Depth, Counterbore Size, Counterbore Depth, Countersink Size, Countersink Angle, Thread Size, Thread Depth, Path Length, and Overall Length.
Smart Depth
Specifies hole and slot depth data from the Smart Depth tab in the Callout Properties dialog box. If no smart depth data is specified on this tab, then this button specifies depth data from the Smart Depth tab in the Modify Dimension Style dialog box.
Smart Thread Depth
Specifies thread depth data from the Smart Depth tab in the Callout Properties dialog box. If no smart thread depth data is specified on this tab, then this button specifies thread depth data from the Smart Depth tab in the Modify Dimension Style dialog box.