Precautions for Outer Round Car Knives for Inner Hole Processing?

A: First, the tool's avoidance (i.e. to avoid contact with the work piece);

What precautions should the car blade chip slot left and right hand in processing and with the knife rod?

A: The right-hand outer round knife with the right-hand blade, the left-handed outer round knife with the left and right blade, the inner hole knife is the opposite. There are inner and outer garden end faces that are not available.