Goto Window menu then hover the mouse pointer on Toolbars a new menu bar appears then select Advanced. Hurrah! Rectangular Grid tool appears.

Where is the polar grid tool illustrator 2021?

After clicking the 3 dots at the bottom of the toolbox, choose Advanced from the All Tools panel menu. That will give you all of the available tools, including the polar grid. Please show us a screenshot. It's now under the "Line Tool".

Where is the rectangular grid tool in Illustrator CC?

You can find the grid tool on the tool panel under the line tool. Long-click the line tool to select the “rectangular grid tool”. Then click anywhere on the document to open a dialog that will allow you to enter the values you want for your grid.