Flat part on router base

[Sharp Blade]

Has anyone noticed that the Festool 2200 router has two flat sides? I watched several of their videos on how to use the tool and NONE addressed this. Hmmmmm :icon_scra

 

[Travis Porter]

Only my plunge routers (DeWalt and Bosch) have flat sides. The remainder are round.

BUT, one of my trim routers has a flat side and it is not a plunge base.

Anna-Catherine, the Festool is a beast in it's own class and doesn't match anything.

 

[merrill77]

I have 3 routers - Craftsman, Triton and Milwaukee. None have a straight edge. The Triton is a plunger.