Milling the PCB outline. What's the endmill diameter?

Folks,

What end-mill diameters fabs typically used for routing (milling) the outline of the PCB?

I have a PCB with an inside angle. I don’t want to make an inside chamfer, as in the bottom-right drawing below. That would weaken the board mechanically. Instead, I want to make an outside chamfer on a mechanical part that mates with that inside angle. It doesn’t need to be a close fit. I just want to have a sufficient chamfer radius on the mechanical part.

  • Nick

http://www.pcbexpress.com/images/sample/chamfer.gif