Tab and Slot
The "Tab and Slot" preview for Autodesk® Inventor® is a free add-in and it currently works with any version of Inventor but was only tested with Inventor version 2019 to 2022.
The add-in allows for easy tab and slot creation on plate and tube models.
Any uniformly thick parts can be used to create tabs and slots. Further to that, "centre drilled" and "coincident" or "dog-bone" recess fillets can be added automatically to the Tabs or Slots or both.
The add-in supports Metric (mm) and Imperial (inch) units.