perpendicular cut to the surface

[kionn]

Hello everyone
I have a new problem:
I also attach the file
,I want to make a normal cut to the surface(where I already cut)how can I do?
Hi.
Thank you.

 

[maxopus]

Does it have to pass through the hole?
However, in the sketch phase, select as reference the surface you need.
When you draw a line and move axially, the bond of perpendicularity appears automatically.
you place two pictures and the file (made with wf4).

 

[kionn]

Thank you very much maxopus... resolved. .
in the sketch phase asked me the references and I couldn't give them, I gave him the reference of the hole axis... and it was fine...
Thank you very much