Feature toolbar with Hole callout icon

Apply a hole callout to a hole or thread, automatically inserting the metadata of the hole or thread.

Example of how to use Hole Callout tool Example of how to use Hole Callout tool Drawing view of thread and chamfer


Creating a hole or thread callout:

  1. Click Hole callout icon.
  2. Select a circle that is part of a hole feature, or a thread that is part of an external thread feature.
  3. Drag to place the callout.

    If the selection was part of a hole feature, the precision, tolerance, fit class tolerance, and shaft class tolerance values from that feature are automatically applied. To override these values, see Editing a callout section below.

  4. The leader includes a moveable node along the horizontal segment.

You can add multiple leaders to more holes, as long as the holes are the same size:

  1. Right-click the callout and select Add leader.
  2. Click on another hole.
  3. Repeat as necessary to add leaders to as many same-size holes as necessary.

Adding multiple leaders to the Hole callout

While moving the mouse to place the callout, you'll notice thin, red, dashed lines as the cursor passes near other entities (shown below to the right of the blue arrow). These are inferencing lines that you are able to align the dimension to; simply click when you see the line appear to align the dimension to that line.

Screenshot example of the red inferencing line in hole callout

Editing a callout

You can edit a callout once it is placed: double-click on the callout to open the panel:

Double-clicking a callout to open its panel for editing

Use the panel to edit characteristics such as:

  • Prefix
  • Units
  • Suffix
  • Notes
  • Symbols
  • Dimension inspection
  • Single dimension or dual dimension selection - Dual dimensions may be top/bottom or side-by-side
  • Shaft class visibility:
    • Shaft fit class information is hidden by default in Hole callouts and Hole tables in drawings.
    • Click the Toggle shaft class vibility button to toggle between display styles.
    • Click the Toggle shaft class visibility dropdown to select a display style.

You can set precision and tolerance precision per parameter by checking the box next to Override precision/tolerance:

Tolerance edit panel with override checkbox checked

Use the menus to select a new precision and/or tolerance for the selected hole/thread or collection of holes created by the feature.

  • Precision - Select the depth of unit precision (zero to 8 decimal places).
  • Tolerance display - Select None, Symmetrical, Deviation, Limits, Basic, MIN, or MAX.
    • There will be no tolerance amount input present when MIN or MAX is selected.

Hole drawing lines

The image below depicts an ANSI tapered pipe tap hole drawing:

Tapered pipe tapped hole drawing

Threads on tapped and tapered pipe tap holes are indicated by dashed lines for ANSI drawings, and the appropriate 3/4 outline for ISO drawings. An ANSI drawing is illustrated below:

Example of an ANSI drawing with threads

When a part occludes part of thread, the occluded threads are not shown, as shown below:

For threaded holes, the representation of the threading tool pulling away from the workpiece is a 45 degree tapered transition that extends from the external and internal threads to the cylinder edge (outlined in red below):

Threaded taper example

To show/hide thread lines:

  1. Right-click on the view.
  2. Select Show/Hide threads (to toggle thread lines on and off).

Thread drawing lines

The image below depicts a thread on a 3/4inch ANSI standard bolt with 10 threads per inch:

Thread shown in drawing

Bolts with a chamfer applied through the External thread feature have dashed lines representing the threads in the drawing view:

Drawing view of thread and chamfer

Bolts with an undercut applied through the External thread feature show both the undercut and the dashed thread lines in the drawing view:

Drawing view of thread and undercut

Styling a callout

To style a callout:

  1. Click on the callout you want to style, then click the Styles panel icon on the right side of the page:

  2. Drawings styles panel icon

  3. This opens the Styles panel, where you can edit the font, text height, color, and arrowhead of the callout:

Drawings Styles panel