I'm not very good for posting about tools but here just how to use my tool for copying cones on a Tripan basis.
Using my two gauge tool, and only the perpendicular function, gentle taps with the hand hammer you can have a 1/100 millimeters in two minutes, this is necessary when you have tools with a specific angle, or for clips mount etc.
Here you need not to have a perfect longitudinal adjustment but I prefer always to do it before.
At the beginning you can see how it reacts with a good tool holder alignment, I unscrew it and readjust later in the video, the camera is not good fixed and I need your comprehension. ;-)