Building the Foundation of the Design - Autodesk Inventor 2010: No Experience Required - page 105

FIGURE 2.55 Including centerpoints in the sketch saves having to select
point for Punch tool placement.
16. On the Size tab, use the pull-down selector to pick the 1.500 in tool
diameter. Note that the preview doesn't update.
17. Click the Finish button. See Figure 2.56.