This really should be moved to the Manufacturing forum
For normal (insert) turning tools, you get to choose what the output coordinates refer to.
This is also shown as the toolpath when you generate or replay the internal toolpath in NX.
Do you want the output coordinates (X/Z) to represent the "center of the tip radius" ("0" / "9" in your diagrams) or the "theoretical "point (for typical OD insert in left spindle, upper turret, "2") that you would probably actually touch off the tool to get offsets.
Ken Akerboom Sr CAx Systems Engr, Moog, Inc.
Production: NX10.0.3.5 MP16/TC11.2 I'd rather be e-steamed than e-diseaseled