Circular move with fixed positions

Hello everyone.
I’d like to ask your help to realize new one application for ur16.
For this application I need to use the tool (D=10mm)
and create an angular (30 or 45 degrees )rotation of of 360 degrees to rework vertical wall of blind hole.
I create the program of only circular move by p1,p2,p3,p4 but don’t know how to keep the tool in 30 degree.
In attached some sketch of application.
Photo

Maybe someone have some example of program?

Thanks in advance