NX Milling a countersink on the back side of a part

A hole is drilled through a block and then chamfered. When adding a chamfering operation to the opposite side of the hole the Reverse Direction button is pressed but does nothing. How can the axis of the hole be flipped in order to finish the backside of the part?

Solution

Changing the Feature Geometry -> Machining Area from Faces Top Chamfer to Faces Bottom Chamfer will automatically reverse the tool axis direction and will allow the back side chamfer to be machined. It is not necessary to press the Reverse Direction button nor is it even possible.

Notes and References

Hardware/Software Configuration

Platform: all
OS: n/a
OS Version: n/a
Product: NX
Application: CAM
Version: V1859
Function: DRILLING

Ref: 001-9455467