thank you jimmy
Now I m feeling better making this mdification,I have quaid many tools but i haven t got a "body-reamer" i think i gonna give it a try with the dremel and try to stay on center" i don t think i gonna be able to give the 8mm hole that 'cone-border' shape but you said that doesn t matter if it is flat,
tell me: how do you manage to make the hole coned shape?
thank you.
I am gonna put a few pics of my durango soon.
ciao